Why review the literature?
You are not the first
You are not the first: building on the literature
On the left, the literature: decades of published research on employee turnover, customer satisfaction, engagement and leadership; turnover alone has been studied intensively since at least the 1970s. An arrow marked draw on leads to your project, whose base is what is known, built from their concepts, measures and findings. On top of it sits what I add: you distinguish your work from theirs. Here is what is known, and here is what I add: the basic shape of a contribution. If you ignore the literature, you reinvent wheels at best and repeat known mistakes at worst. At Meridian: before designing a single survey question, the team should know what forty years of turnover research has already established.
THE LITERATURE
Decades of published research
Employee turnover
Customer satisfaction
Engagement
Leadership
turnover alone: studied intensively since at least the 1970s
YOUR PROJECT
draw on
What is known
built from their concepts, measures and
findings — the raw material of your study
What I add
distinguish your work from theirs
“Here is what is known, and here is what I add”: the basic shape of a contribution
IF YOU IGNORE IT
You reinvent wheels at best —
and repeat known mistakes at worst.
AT MERIDIAN
Before designing a single survey question, the team
should know what forty years of turnover research has
already established.
What is a literature review?
What a literature review is
At the top, the definition: a literature review is a critical examination of existing research on the phenomena of interest, and of the relevant theoretical ideas. Two panels follow. In the natural sciences the review sets out an agreed body of knowledge, drawn as a wall of bricks: the established base on which the researcher builds a new study. In the social sciences there are competing approaches and competing accounts: an economist, a psychologist and a sociologist each point at the same question, why do employees quit, and agreement is the exception. So a social-science review conveys the sense of the contest: what we know, meaning what has been found so far, and how we know it, meaning what research approaches have been taken. It is an argument about the state of knowledge, not a list of everything ever written.
A LITERATURE REVIEW
a critical examination of existing research on the phenomena of interest, and of the relevant theoretical ideas
Natural sciences
an agreed body of knowledge
your study
The review sets out
the established base;
the researcher builds
on it.
Social sciences
competing approaches and competing accounts
Why do
employees quit?
Economist
Psychologist
Sociologist
agreement is
the exception
So a social-science review conveys the sense of the contest:
WHAT WE KNOW
what has been found so far
HOW WE KNOW IT
what research approaches have been taken
✓ an argument about the state of knowledge
✗ not a list of everything ever written
What the review does for your project
What the review does for your project
Following Creswell and Creswell, the literature review is drawn as a bridge between a topic, on the left bank, and a researchable question, on the right. Four pillars hold it up. 1, Establishes context: how the topic has been studied, and how understanding has developed over time. 2, Avoids reinventing the wheel: you learn what is settled, and spend effort where it matters. 3, Strengthens your methodology: you inherit tested measures, designs, and warnings about what fails. 4, Identifies trends, debates and gaps: the gap you find is where your own research question lives. At Meridian: if research consistently shows that pay explains less turnover than supervision quality, Meridian's study, and its budget, should be designed accordingly.
Creswell & Creswell: the review is the bridge between a topic and a researchable question
A topic
A
researchable
question
The literature review
1
Establishes
context
how the topic has
been studied, and
how understanding
has developed over
time
2
Avoids
reinventing the
wheel
you learn what is
settled, and spend
effort where it
matters
3
Strengthens your
methodology
you inherit tested
measures, designs,
and warnings about
what fails
4
Identifies
trends, debates
and gaps
the gap you find is
where your own
research question
lives
AT MERIDIAN
If research consistently shows that pay explains less turnover than supervision quality, Meridian's study — and
its budget — should be designed accordingly.
Where the review sits in the research process
Where the review sits in the research process
A bar across the top: the literature review is an early stage of the research process, after the topic and before the question and design are final, but not a self-contained one. Arrows marked feeds run from it down to four later stages along the research process. Concepts and theories: the ideas that frame the study come from the literature; at Meridian, job satisfaction, organisational commitment, embeddedness. Research questions: sharpened against what is already known: you cannot claim to fill a gap until you have mapped the terrain. Design and measurement: borrowed and adapted from previous studies. Interpretation: findings mean little until compared with what others found; at Meridian, 40% of leavers cite scheduling: typical of retail, or anomalous?. Underneath: the review is a living document; you keep returning to the literature throughout the project, not a chapter you finish and forget.
THE LITERATURE REVIEW
an early stage — after the topic, before the question and design are final — but not a self-contained one
the research process
feeds
Concepts and theories
the ideas that frame the
study come from the
literature
AT MERIDIAN
job satisfaction,
organisational commitment,
embeddedness
feeds
Research questions
sharpened against what is
already known: you cannot
claim to fill a gap until
you have mapped the
terrain
feeds
Design and
measurement
borrowed and adapted from
previous studies
feeds
Interpretation
findings mean little until
compared with what others
found
AT MERIDIAN
40% of leavers cite
scheduling: typical of
retail, or anomalous?
A LIVING DOCUMENT
You keep returning to the literature throughout the project — not a chapter you finish and forget.
A review is not secondary data analysis
A literature review is not secondary data analysis
Across the top, another researcher's study: data collected, such as survey responses and records; their analysis, run on their data; and published findings and arguments. Secondary data analysis taps the start of that chain: it reuses other researchers' data, and you run your own analysis on datasets someone else collected, going from their data to your analysis to new findings, without new fieldwork. A literature review taps the end: it engages with other researchers' findings and arguments, their published conclusions, and tells you what is known, and how. Keep the two shelves separate: this session is about the literature; the next session is about data, where to find existing datasets and how to judge whether they can answer your question.
Another researcher's study
Data collected
survey responses, records
Their analysis
run on their data
Published findings
and arguments
SECONDARY DATA ANALYSIS
reuses other researchers' data: you run your own
analysis on datasets someone else collected
their data
your analysis
new findings
new findings without new fieldwork
LITERATURE REVIEW
engages with other researchers' findings and
arguments: their published conclusions
their conclusions
what is known, and how
reviewing tells you what is known
Keep the two shelves separate: this session, literature — next session, data
where to find existing datasets, and how to judge whether they can answer your question
Narrative reviews
Narrative reviews: strengths and weaknesses
The traditional narrative review in three steps: the reviewer reads widely, selects what seems important, and constructs a critical narrative of the field. Selection and interpretation rest on the reviewer's judgement; there is no formal protocol. Strengths: it is flexible and can follow the argument wherever it leads, and it suits broad, theoretical or loosely defined topics; most textbook chapters and thesis literature reviews are narrative reviews. An illustration of cherry-picking: a field of sources, some fitting the reviewer's view and some contradicting it; a dashed red loop around the cited ones takes in mostly those that fit. A reviewer who thinks pay drives turnover cites the studies that agree. Weaknesses: cherry-picking, since consciously or not reviewers favour sources that fit their view; and it is hard to check, because there is no record of what was searched, so a reader cannot tell what was left out.
1
The reviewer reads widely
2
selects what seems important
3
constructs a critical narrative of the field
Selection and interpretation rest on the reviewer's
judgement — there is no formal protocol.
STRENGTHS
+ Flexible: it can follow the argument wherever it
leads
+ Suits broad, theoretical or loosely defined topics
Most textbook chapters and thesis literature reviews are
narrative reviews.
Cherry-picking
fits the view
contradicts it
cited
A reviewer who thinks
pay drives turnover
cites the studies that
agree.
WEAKNESSES
− Cherry-picking: consciously or not, reviewers favour
sources that fit their view
− Hard to check: no record of what was searched, so a
reader cannot tell what was left out
Systematic literature reviews
Systematic literature reviews: the protocol and its aim
A bar marks the protocol, decided before searching begins; an arrow leads from it to searching begins. Under the bar, the protocol's four key features. 1, Defined research question: the question the review sets out to answer — not “turnover in general”. 2, Stated search strategy: which databases, which search strings, which dates. 3, Inclusion and exclusion criteria: rules for what counts, applied consistently to everything found. 4, Documented screening: how many sources were found, how many kept — and why. Beside them, two researchers, A and B, follow the same protocol and arrive at the same set of documents. The aim is replicability: another researcher following your protocol should retrieve substantially the same literature. The systematic review originated in medicine and is now standard in management research, where the evidence base is large and mixed in quality.
THE PROTOCOL — DECIDED BEFORE SEARCHING BEGINS
searching begins
1
Defined research
question
the question the
review sets out to
answer — not
“turnover in
general”
2
Stated search
strategy
which databases,
which search
strings, which dates
3
Inclusion and
exclusion
criteria
rules for what
counts, applied
consistently to
everything found
4
Documented
screening
how many sources
were found, how many
kept — and why
Same protocol,
same literature
A
B
THE AIM: REPLICABILITY
Another researcher following your protocol should retrieve substantially the same literature.
Originated in medicine; now standard in management research, where the evidence base is large and mixed in quality.
Narrative vs systematic: a comparison
Narrative and systematic reviews compared
A comparison in five rows, the narrative review in one column and the systematic review in the other. Selection: narrative, reviewer's judgement; systematic, explicit criteria, set in advance. Search: narrative, undocumented, flexible; systematic, documented strategy, stated databases. Replicability: narrative, low; systematic, high — the protocol can be repeated. Bias risk: narrative, cherry-picking; systematic, reduced, though not eliminated. Best for: narrative, broad or theoretical terrain; systematic, focused, answerable questions. Examples: how should we think about the employment relationship is narrative-review territory; does flexible scheduling reduce turnover in retail is systematic-review territory. For your projects, borrow the discipline: a fully systematic review is beyond a semester's work, but three habits cost about an hour: state your keywords, name your databases, and write down your criteria for keeping or discarding sources.
Narrative review
Systematic review
Selection
Search
Replicability
Bias risk
Best for
Reviewer's judgement
Undocumented, flexible
Low
Cherry-picking
Broad or theoretical terrain
“How should we think about the employment
relationship?”
Explicit criteria, set in advance
Documented strategy, stated databases
High — the protocol can be repeated
Reduced, though not eliminated
Focused, answerable questions
“Does flexible scheduling reduce turnover in
retail?”
FOR YOUR PROJECTS: BORROW THE DISCIPLINE
A fully systematic review is beyond a semester's work — but three habits cost about an hour:
state your keywords
name your databases
write down your criteria for keeping or discarding sources
Preparing for the review
Preparing for the review: three decisions that make a protocol
Before searching, three decisions, in writing. 1, define your question or focus: not turnover, which will drown you in sources, but why frontline retail employees quit, a manageable, searchable object. 2, establish inclusion and exclusion criteria, for example peer-reviewed sources published since 2010, empirical studies of retail or service-sector employees, and English-language publications; adjust them deliberately, and record the change. 3, decide on sources and time frames: which databases you will search and how far back you will go; ten years is a common default in management, but a field with a pivotal older literature may need more. Together the three decisions are your protocol: it turns searching from wandering into method, and it is what your methods section will describe.
Before searching: three decisions, in writing
1
Define your question or
focus
NOT
“turnover”
will drown you in sources
BUT
“why frontline retail employees
quit”
a manageable, searchable object
2
Establish inclusion and
exclusion criteria
for example:
peer-reviewed sources published
since 2010
empirical studies of retail or
service-sector employees
English-language publications
Adjust them deliberately, and record
the change.
3
Decide on sources and time
frames
which databases you will search
how far back you will go
Ten years is a common default in
management; a field with a pivotal
older literature may need more.
= YOUR PROTOCOL
It turns searching from wandering into method — and it is what your methods section will describe.
Where to search
Where to search, and the two search strategies
Three places to search. Academic databases, searchable indexes of scholarly publications: Web of Science, Scopus, JSTOR, ScienceDirect and EBSCO Business Source, usually reached through your institution's library. Google Scholar: free, publicly available and vast; the practical starting point for most student searches; its cited by function is excellent; but it is less curated, with some material of doubtful quality. Theses, dissertations and institutional repositories: often the only place where recent, specialised work appears, years before it reaches a journal. Below, two complementary search strategies, to be used together: term searching, querying databases with keywords, such as turnover AND retail; and citation searching, following the references of what you have already found, drawn as a small network of linked sources. Beginners rely on the first; experienced researchers lean on the second.
Academic databases
searchable indexes of scholarly
publications
Web of Science
Scopus
JSTOR
ScienceDirect
EBSCO Business Source
usually reached through your
institution's library
Google Scholar
+
free, publicly available, and
vast
+
the practical starting point for
most student searches
+
its “cited by” function is
excellent
−
less curated: some material of
doubtful quality
Theses, dissertations and
institutional repositories
often the only place where recent,
specialised work appears — years
before it reaches a journal
Two complementary search strategies — use both
Term searching
querying databases with keywords
turnover AND retail
Citation searching
following the references of what
you have already found
Beginners rely almost entirely on the first; experienced researchers lean heavily on the second.
From concepts to keywords
From concepts to keywords
List the key concepts in your research question, then synonyms and related terms for each. Three concept headers with their synonyms underneath. Employee turnover: staff turnover, attrition, quit rates, retention, intention to leave. Retail workforce: frontline employees, service sector, sales staff, store employees. Causes: antecedents, determinants, predictors, drivers. Under causes, a note on the move from everyday English to academic English: authors write antecedents of turnover intention, not causes of turnover. Below, where keywords live, each with a small article whose keyword is highlighted. In the abstract: a decent signal of relevance, and more hits, so a broad first pass. In the title: far fewer hits, but almost every hit is relevant, so a precision pass.
List the key concepts in your research question — then synonyms and related terms for each
Employee turnover
Retail workforce
Causes
staff turnover
attrition
quit rates
retention
intention to leave
frontline employees
service sector
sales staff
store employees
antecedents
determinants
predictors
drivers
everyday English → academic English:
authors write “antecedents of turnover
intention”, not “causes of turnover”
Where keywords live
IN THE ABSTRACT
a decent signal of relevance — and more
hits
broad first pass
IN THE TITLE
far fewer hits — but almost every hit is
relevant
precision pass
Boolean operators
Boolean operators as Venn diagrams
Five panels. AND narrows, because both terms must appear: two overlapping circles, turnover and retail, with only their overlap shaded; turnover AND retail. OR broadens, because either term may appear: turnover and attrition with both circles shaded; turnover OR attrition OR quit rates. NOT, written as a minus sign in Google Scholar, excludes a term: the turnover circle is shaded except where it overlaps financial; turnover minus financial removes asset-turnover finance papers. Quotation marks search an exact phrase: quoting employee turnover finds high employee turnover in retail, but not employee on page 2 and turnover on page 9. Parentheses group the logic: in open bracket employee turnover OR attrition close bracket AND retail, the shaded area is the part of either the employee turnover circle or the attrition circle that lies inside the retail circle: either name for the phenomenon, but definitely in retail.
AND
narrows: both terms must appear
turnover
retail
turnover AND retail
OR
broadens: either term may appear
turnover
attrition
turnover OR attrition
OR "quit rates"
NOT ( − )
excludes a term
turnover
financial
turnover -financial
removes asset-turnover finance papers
“Quotation marks”
search an exact phrase
"employee turnover"
✓
…high
employee turnover
in retail…
✗
“employee” on page 2, “turnover” on page 9
( Parentheses )
group the logic
("employee turnover"
OR attrition)
AND retail
either name for the phenomenon — but
definitely in retail
employee
turnover
attrition
retail
Building a search string
Building a search string from concept blocks
Running example: the Meridian team wants literature on why retail employees quit. Three dashed blocks, one per concept. Employee turnover: quote employee turnover, OR, quote staff attrition. Retail: retail. Causes: causes OR antecedents. The blocks are joined by AND: OR inside a block, AND between blocks. Assembled, the string reads: open bracket, quote employee turnover, OR quote staff attrition, close bracket, AND retail AND, open bracket, causes OR antecedents, close bracket. This is the skeleton of every competent search string.
RUNNING EXAMPLE
The Meridian team wants literature on why retail employees quit.
concept: employee turnover
"employee turnover"
OR
"staff attrition"
concept: retail
retail
concept: causes
causes
OR
antecedents
AND
AND
OR inside a block — AND between blocks
("employee turnover" OR "staff attrition") AND retail AND (causes OR antecedents)
the skeleton of every competent search string
Building a search string: three attempts
Building a search string in three attempts
Three attempts at a search string for Meridian's question. Attempt 1: employee turnover. Verdict: millions of hits, hopelessly broad — but informative: the term is far too broad on its own. Attempt 2: "employee turnover" AND retail, changed by + phrase in quotes, + AND a second concept. Verdict: better, but swamped by US supermarket studies, mixing descriptions with explanations. Attempt 3: ("employee turnover" OR "staff attrition") AND retail AND (causes OR antecedents), changed by + OR synonyms, + AND a third concept. Verdict: focused, on studies that explain quitting, not merely count it. No first search string is right; the skill is in the refinement: read the results critically, and adjust.
1
employee turnover
MILLIONS OF HITS
hopelessly broad — but informative: the
term is far too broad on its own
2
"employee turnover" AND retail
+ phrase in quotes, + AND a second concept
BETTER
but swamped by US supermarket studies,
mixing descriptions with explanations
3
("employee turnover" OR "staff attrition")
AND retail AND (causes OR antecedents)
+ OR synonyms, + AND a third concept
FOCUSED
on studies that explain quitting, not
merely count it
No first search string is right — the skill is in the refinement.
Read the results critically, and adjust.
Refining the search
Refining the search: iterate, adjust, record
On the left, a loop: run the search, inspect the first pages of results, adjust, and run again. Too many results? Narrow: add an AND concept, restrict keywords to titles, or limit the date range. Too few, or off-topic? Broaden: add OR synonyms, drop the most restrictive term, or extend the dates. Use the database filters: publication date, peer-reviewed only, subject area, language. Record every search in a log with columns for the search string, the database, the date and the number of hits: this record makes your review checkable and saves you repeating work.
Run
Inspect
Adjust
iterate
the first pages
…and run again
TOO MANY RESULTS? NARROW
add an AND concept
restrict keywords to titles
limit the date range
TOO FEW, OR OFF-TOPIC? BROADEN
add OR synonyms
drop the most restrictive term
extend the dates
USE THE DATABASE FILTERS
publication date
peer-reviewed only
subject area
language
RECORD EVERY SEARCH
Search string
Database
Date
Hits
This record makes your review
checkable — and saves you repeating
work.
Citation searching
Citation searching, backwards and forwards
A good source you have found sits in the middle of a time line running from older work on the left to newer work on the right. Backwards, or snowballing: arrows run from the source to three older documents; read its reference list, because the studies it builds on are probably relevant to you too. Forwards: arrows run from three newer documents back to the source; Google Scholar's cited by finds the studies that later built on it, and shows its impact on the field. Shortcuts: review articles, and editors' introductions to collections and special issues, where someone has already surveyed the terrain for you. A handful of good recent articles, plus citation searching in both directions, can map a literature faster than keyword searching alone.
a good source
you have found
← older
newer →
the studies
it builds on
BACKWARDS — “SNOWBALLING”
Read its reference list: the studies it builds on are
probably relevant to you too.
the studies that
later built on it
FORWARDS — “CITED BY”
Google Scholar's “cited by” finds the studies that
later built on it — and shows its impact on the field.
SHORTCUTS
Review articles, and editors' introductions to collections and special issues: someone has already surveyed the
terrain for you.
A handful of good recent articles, plus citation searching both ways, can map a literature faster than keywords alone.
Evaluating and reading sources
Not all sources are equal
A rough hierarchy of credibility for academic sources
Five tiers, from most to least credible for academic purposes. 1, Peer-reviewed journal articles: vetted by independent experts before publication. 2, Scholarly books and chapters: reviewed by editors and academic publishers, less formally. 3, Grey literature: consultancy, industry and government reports: no academic review. 4, Quality press: journalistic standards, but written for news value, not cumulative knowledge. 5, Blogs, corporate content, Wikipedia: no systematic quality control at all. An arrow runs down beside the tiers: descending, the burden of proof grows; the lower the source, the harder you interrogate it before relying on it. Wikipedia: orient yourself and mine its references, but never cite it. Underneath, in a dashed box: the hierarchy is a starting point, not a verdict; weak journal articles exist, and so do excellent reports.
1
Peer-reviewed journal articles
vetted by independent experts before publication
2
Scholarly books and chapters
reviewed by editors and academic publishers, less formally
3
Grey literature
consultancy, industry and government reports: no academic review
4
Quality press
journalistic standards, but written for news value, not cumulative knowledge
5
Blogs, corporate content, Wikipedia
no systematic quality control at all
Descending,
the burden of
proof grows
The lower the source, the
harder you interrogate it
before relying on it.
Wikipedia: orient yourself
and mine its references —
never cite it.
A starting point, not a verdict: weak journal articles exist — and so do excellent reports.
What peer review does — and does not — guarantee
What peer review does, and does not, guarantee
Top: a manuscript goes to independent experts, usually anonymised, who scrutinise its theory, methods and conclusions; the outcome is accept, revise or reject. Weak work is filtered out or revised, which is why journal articles anchor a review. Middle: peer review is a quality floor, not a truth guarantee. Reviewers cannot re-run the study: They read the manuscript; honest errors, and occasionally fraud, pass through. Journals vary enormously: From rigorous to barely reviewed: predatory journals publish almost anything for a fee. Which journal always matters. Findings can be superseded: Before leaning on a study, check whether later work confirmed or challenged it. Bottom, citation counts: on the plus side, influence is evidence of scrutiny, since heavily cited work has been read, used and tested; on the minus side, new work has not had time to be cited, and some work is cited only to be criticised. Citations measure attention, not agreement.
manuscript
Independent experts
usually anonymised; they scrutinise
its theory, methods and conclusions
accept
revise
reject
Weak work is filtered out or revised:
this is why journal articles anchor a
review.
A quality floor, not a truth guarantee
Reviewers cannot re-run the
study
They read the manuscript; honest
errors, and occasionally fraud, pass
through.
Journals vary enormously
From rigorous to barely reviewed:
predatory journals publish almost
anything for a fee. Which journal
always matters.
Findings can be superseded
Before leaning on a study, check
whether later work confirmed or
challenged it.
CITATION COUNTS
+ influence is evidence of scrutiny: heavily cited work
has been read, used and tested
− new work has not had time to be cited; some work is
cited only to be criticised
Citations measure attention, not agreement.
Grey literature in management research
Grey literature in management research
In management, much current evidence appears outside academic journals: consultancy studies, for example from McKinsey or Deloitte; industry-association reports; government statistics. Its value: it is current, since a consultancy can publish in weeks what a journal takes two years to print; it is practical, addressed to managerial questions; and it is often built on data academics cannot access. Its dangers: no peer review, with methods often undisclosed; commercial interest, since a report may exist to sell the consultancy's services; and samples and definitions chosen to flatter the headline. The working rule: grey literature supplies context and currency, such as the state of the market and the scale of the problem; academically reviewed work carries your arguments. Always ask: who produced this, for whom, and what do they gain from its conclusions?
Grey literature: in management, much current evidence appears outside academic journals
consultancy studies (McKinsey, Deloitte)
industry-association reports
government statistics
ITS VALUE
+
Current: a consultancy can publish in weeks what a
journal takes two years to print
+
Practical: addressed to managerial questions
+
Often built on data academics cannot access
ITS DANGERS
−
No peer review: methods often undisclosed
−
Commercial interest: a report may exist to sell the
consultancy's services
−
Samples and definitions chosen to flatter the
headline
THE WORKING RULE
Grey literature
context and currency
the market, the scale of the problem
Academically
reviewed work
your arguments
ALWAYS ASK
Who produced this, for whom — and
what do they gain from its
conclusions?
Questions to ask of any source
Questions to ask of any source
Six questions to ask of each publication you consider keeping. 1, What question or problem? Is it actually close to yours, or merely wearing similar keywords? 2, Which key concepts, and how defined? Definitions bite: one study counts all leavers, another only voluntary quits. 3, Which theories, models and methods? Established frameworks, or an innovative approach? 4, What results and conclusions? Stated precisely, not as you vaguely remember them. 5, How does it relate to the field? Does it confirm, add to, or challenge established knowledge? 6, What strengths and weaknesses? Every study has both; note them while you read. Behind them all, Babbie's advice to read as a sceptical consumer: how do they know that? If the source gives you the means to answer, it is probably worth keeping.
1
What question or problem?
Is it actually close to yours, or
merely wearing similar keywords?
2
Which key concepts, and how
defined?
Definitions bite: one study counts
all leavers, another only voluntary
quits.
3
Which theories, models and
methods?
Established frameworks, or an
innovative approach?
4
What results and
conclusions?
Stated precisely, not as you vaguely
remember them.
5
How does it relate to the
field?
Does it confirm, add to, or challenge
established knowledge?
6
What strengths and
weaknesses?
Every study has both; note them while
you read.
BABBIE: READ AS A SCEPTICAL CONSUMER
“How do they know that?”
If the source gives you the means to answer, it is probably worth keeping.
Reading efficiently: abstract-first triage
Reading efficiently: abstract-first triage
A funnel. At the top, at Meridian, a Scholar search on retail turnover returns 400 plausible hits. Stage 1, title and abstract: is it actually about your question? One minute. Most sources exit here, and that is the system working, not a shortcut. Stage 2, introduction and conclusion: what was found, and does it matter to you? About five minutes. More sources exit. Stage 3, full text: read closely, with structured notes, only for the survivors. Out of the bottom come perhaps 25 sources worth reading properly, a week's work instead of a semester's. Notes go under standard headings: question, method, sample, findings, limitations, and relevance to your question, so the sources are comparable when you write.
a Scholar search on retail turnover: 400 plausible hits
1 · Title and abstract
Is it actually about your question?
one minute
✗
Most sources exit here: that is the
system working, not a shortcut.
2 · Introduction and conclusion
What was found — and does it matter to you?
about five minutes
✗
More sources exit.
3 · Full text
read closely, with structured notes
only for the survivors
≈ 25 worth reading properly
a week's work instead of a semester's
NOTES UNDER STANDARD HEADINGS
question
method
sample
findings
limitations
relevance to your question
so the sources are comparable when you write
Organising, synthesising and citing
Organising what you find
Organising what you find: connections between sources
A map of sources as dots, from earlier on the left to later on the right, with five kinds of connection added one at a time, each with its guiding question. Trends and patterns: an arrow runs from a cluster of earlier studies to a later one; do approaches or findings shift over time? Themes: two clusters are circled, labelled pay and supervision; which questions and concepts recur across the literature? Debates and contradictions: a red zigzag marked not equal joins two sources; where do sources disagree, and why? Assess their methods and samples; unresolved conflicts are candidate gaps. Pivotal publications: one large dot with lines to several later studies; which studies changed the direction of the field? Gaps: an empty dashed circle, with an arrow to your research question; what is missing, under-studied, or methodologically weak? At Meridian: little is known about turnover drivers in Central European multi-site retail; the review ends, and the study begins, in the same sentence.
earlier
later
trend
Trends and patterns
Do approaches or findings shift over time?
pay
supervision
Themes
Which questions and concepts recur across the literature?
≠
Debates and contradictions
Where do sources disagree, and why? Assess their methods
and samples; unresolved conflicts are candidate gaps.
pivotal
Pivotal publications
Which studies changed the direction of the field?
gap
your research question
Gaps
What is missing, under-studied, or methodologically weak?
AT MERIDIAN
“Little is known about turnover drivers in Central European multi-site retail.”
The review ends, and the study begins, in the same sentence.
Structuring the review
Four ways to structure a literature review
Four cards, each with a small schematic. Chronological, a time line with two turning points marked: organised by development over time; best when the field has clear turning points and key debates. Thematic, marked most common: sections on pay, supervision, engagement and labour-market conditions, as in a turnover review; organised by topics and sub-questions; best when distinct aspects need separate treatment. Methodological, a qualitative and a quantitative column: organised by research approach; best when qualitative and quantitative studies reach different conclusions. Theoretical, theory A and theory B both pointing at the same phenomenon: organised by competing frameworks; best when rival theories explain the same phenomenon. Never acceptable: source by source; one paragraph per article, in the order you read them, is not a structure but the absence of one.
Chronological
turning points
ORGANISED BY
development over time
BEST WHEN
the field has clear turning
points and key debates
Thematic
most common
pay
supervision
engagement
labour-market conditions
e.g. a turnover review
ORGANISED BY
topics and sub-questions
BEST WHEN
distinct aspects need
separate treatment
Methodological
qualitative
quantitative
ORGANISED BY
research approach
BEST WHEN
qualitative and
quantitative studies reach
different conclusions
Theoretical
theory A
theory B
phenomenon
ORGANISED BY
competing frameworks
BEST WHEN
rival theories explain the
same phenomenon
NEVER ACCEPTABLE: SOURCE BY SOURCE
One paragraph per article, in the order you read them, is not a structure — it is the absence of one.
Synthesis over summary
Synthesis over summary
On the left, the cardinal sin: a sequence of summaries, one paragraph per author: Smith found X; Jones found Y; Brown found Z. The synthesis is left to the reader. On the right, a synthesis, which groups, compares and adjudicates, in five moves: 1, Establish the themes that emerge from the literature. 2, Discuss them — especially conflict and difference in how they are understood. 3, State the agreed knowledge, if any, and the nature of the disagreements. 4, Take a position yourself, from those available in the literature. 5, Conclude with your research question, and how it follows from the gaps. Underneath, what synthesis sounds like, organised around ideas rather than authors: the field agrees that supervision matters, but splits on whether its effect runs through job satisfaction or through perceived fairness.
✗ A sequence of summaries
Smith found X.
Jones found Y.
Brown found Z.
one paragraph per author: the synthesis
is left to the reader
✓ A synthesis: groups, compares, adjudicates
1
Establish the themes that emerge from the literature
2
Discuss them — especially conflict and difference in how they are
understood
3
State the agreed knowledge, if any, and the nature of the disagreements
4
Take a position yourself, from those available in the literature
5
Conclude with your research question, and how it follows from the gaps
SYNTHESIS SOUNDS LIKE THIS — IDEAS, NOT AUTHORS
“The field agrees that supervision matters, but splits on whether its effect runs through
job satisfaction or through perceived fairness.”
Citing and avoiding plagiarism
Citing sources and avoiding plagiarism
Top, a workflow: find a source; record full details at once, meaning author, year, title, outlet and pages; use a reference manager such as Zotero, which is free and formats citations automatically; cite in APA style, the programme's standard. Below, does it need a citation? Quoting their words: cite. Using their ideas or findings: cite, because uncredited it is plagiarism, exactly as copying words is. Paraphrasing, their idea in your own words: cite, because the idea is still theirs. Changing three words in their sentence: not paraphrase but copying with cosmetics, which is plagiarism. Read, but not used in the write-up: no citation needed. This semester, the habit of recording and crediting sources matters more than the format; referencing mechanics come later.
Find a source
Record full details at once
author · year · title · outlet ·
pages
Use a reference manager
Zotero: free, formats citations
automatically
Cite in APA style
the programme's standard
Does it need a citation?
Quoting their words
✓ Cite
Using their ideas or findings
✓ Cite — uncredited, it is plagiarism, exactly as copying words is
Paraphrasing: their idea in your own words
✓ Cite — the idea is still theirs
Changing three words in their sentence
✗ Not paraphrase: copying with cosmetics — plagiarism
Read, but not used in the write-up
– No citation needed
This semester, the habit of recording and crediting sources matters more than the format: referencing mechanics come later.
Conclusion
A literature review is critical engagement with what is already known — what we know, and how we know it — not an annotated reading list
The systematic review’s discipline — stated question, documented search, explicit criteria — is a standard worth borrowing even for modest projects
Searching is a craft of iteration : concepts → keywords → Boolean strings → refinement, with every step recorded
Sources must be weighed, not counted : peer review anchors the hierarchy, grey literature adds currency and context but never carries the argument alone
Read by triage , organise by theme , write by synthesis , and cite everything you use
Meridian’s team now knows what the field says about turnover; in the next session we ask what existing data it can reuse before collecting any of its own
Questions and discussion are welcome
Model answers: ranking the sources
Model answer to Task 1: a defensible ranking of the seven sources
A defensible ranking, one among several; credit the feature named, not the sequence. 1, source B, journal article (Kowalczyk & Ferreira): peer-reviewed; a three-wave panel of 1,842; actual quitting, not intention; controls for rival explanations. 2, source F, scholarly book chapter (Novak): editorial review; maps four decades of research; 2019 is not current; others' evidence, not new findings. 3, source G, industry-association report (Retail Workforce Barometer): method disclosed (240 member firms); no independent review; a lobbying interest; over-represents firms willing to respond. 4, source A, consultancy white paper (Hartwell & Grey): current; 4,000 employees in 12 markets; sells its own framework; method undisclosed; the 68% is intention, not behaviour. 5, source E, newspaper article (The Business Courier): journalistic standards; anecdote plus authority: chase the ministry statistics, cite those. 6, source C, practitioner blog post (Lem): a hypothesis worth testing; no quality control; unverifiable personal experience. 7, source D, wikipedia entry (“Employee turnover”): a gateway: definitions, references; anyone can edit; flags missing citations: never cite it. Dashed yellow brackets mark where reasonable groups diverge: places 1 and 2, F first is defensible if argued, for its synthesis value; places 3 and 4, G against A is the classic dispute, and either order is fine if the sales motive is acknowledged; places 5 and 6, C against E, either order with reasoning.
One defensible ranking among several: credit the feature named, not the sequence
1
B
Journal article
Kowalczyk & Ferreira
+ peer-reviewed; a three-wave panel of 1,842; actual quitting, not intention; controls for rival
explanations
2
F
Scholarly book chapter
Novak
+ editorial review; maps four decades of research − 2019 is not current; others' evidence, not
new findings
3
G
Industry-association report
Retail Workforce Barometer
+ method disclosed (240 member firms) − no independent review; a lobbying interest;
over-represents firms willing to respond
4
A
Consultancy white paper
Hartwell & Grey
+ current; 4,000 employees in 12 markets − sells its own framework; method undisclosed; the
68% is intention, not behaviour
5
E
Newspaper article
The Business Courier
+ journalistic standards − anecdote plus authority: chase the ministry statistics, cite those
6
C
Practitioner blog post
Lem
+ a hypothesis worth testing − no quality control; unverifiable personal experience
7
D
Wikipedia entry
“Employee turnover”
+ a gateway: definitions, references − anyone can edit; flags missing citations: never cite it
F first is defensible if
argued: its synthesis
value
G vs A, the classic
dispute: either order,
if the sales motive is
acknowledged
C vs E: either order,
with reasoning
Model answers: what each source is good for
Model answer to the managerial-context question: what each source is good for
Credibility for an academic review and usefulness to a decision-maker are different tests. The review's arguments must rest on B and F, the journal article and the book chapter. Context for the Meridian board: A and G are what a board finds most immediately persuasive. G gives current sector benchmarks, since Meridian's 27% only means something against a sector baseline; A gives multi-market scale and an actionable framing; E gives salience and the wage-competition threat from e-commerce warehouses, relevant to Meridian's own e-commerce expansion; C suggests a cheap practice, stay interviews, worth piloting even before research concludes. Other legitimate uses in the review: E is a signpost, so chase the labour-ministry statistics it cites and cite those instead; C is a hypothesis-generator, since a research team could test whether exit interviews mislead employers; D is a gateway, to orient with its definitions and mine its references, but never to cite.
Credibility for an academic review and usefulness to a decision-maker are different tests
CARRIES THE REVIEW'S
ARGUMENTS
B and F
the journal article and the
book chapter: the review's
arguments must rest on them
CONTEXT FOR THE MERIDIAN BOARD
A and G: what a board finds most immediately persuasive
G
current sector benchmarks: Meridian's 27% only means something against a
sector baseline
A
multi-market scale and an actionable framing
E
salience, and the wage-competition threat from e-commerce warehouses —
relevant to Meridian's own e-commerce expansion
C
a cheap practice, stay interviews, worth piloting even before research
concludes
Other legitimate uses in the review
E
A signpost
Chase the labour-ministry statistics
it cites, and cite those instead.
C
A hypothesis-generator
Do exit interviews mislead
employers? A research team could go
on to test it.
D
A gateway
Orient with its definitions and mine
its references — never cite it.
Model answers: a model search log
Model answer to Task 2: a search log in three versions
A model search log; any coherent iteration earns credit if each refinement is motivated by inspecting the results, and hit counts vary, so do not mark them against a target. Version 1: employee turnover retail; approximately hundreds of thousands hits. Unusable breadth: the words are matched separately, so results include finance papers on asset turnover and anything mentioning retail in passing. Version 2: "employee turnover" AND retail; approximately tens of thousands hits. Quotation marks force the exact phrase: the single highest-value refinement. On-topic now, but dominated by descriptive and non-European studies, and still missing work that says “attrition” or “quit”. Version 3: ("employee turnover" OR "staff attrition" OR "turnover intention") AND retail AND (antecedents OR causes OR "supervisory support"); approximately a few thousand hits. OR bundles the field's synonyms; the third AND block tilts results from describing turnover to explaining it. The first page is now dominated by studies that would survive abstract triage.
Any coherent iteration earns credit, if each refinement is motivated by inspecting the results. Hit counts vary: do not mark them against a target.
Search string
Approx. hits
Commentary
1
employee turnover retail
Hundreds of
thousands
Unusable breadth: the words are matched
separately, so results include finance papers
on asset turnover and anything mentioning
retail in passing.
2
"employee turnover" AND retail
Tens of
thousands
Quotation marks force the exact phrase: the
single highest-value refinement.
On-topic now, but dominated by descriptive and
non-European studies, and still missing work
that says “attrition” or “quit”.
3
("employee turnover" OR "staff attrition"
OR "turnover intention") AND retail AND
(antecedents OR causes OR "supervisory
support")
A few thousand
OR bundles the field's synonyms; the third AND
block tilts results from describing turnover to
explaining it. The first page is now dominated
by studies that would survive abstract triage.
Model answers: refinements and common faults
Model answer to Task 2: refinements to credit and faults to correct
At the top, the rule: OR within a concept, AND between concepts. Correct: open bracket, quote employee turnover, OR attrition, close bracket, AND retail, meaning either name, but in retail. Wrong: turnover OR retail, because OR between concepts broadens disastrously. Further refinements worth crediting: a date filter, for example since 2015, for currency; minus financial or minus asset, to remove residual finance hits; intitle colon turnover, to restrict a term to titles; frontline OR quote service sector, to sharpen the population. Common faults to correct: treating hit counts as the goal, when the test is first-page quality, not smallness; stacking AND terms until nothing survives; writing OR between concepts instead of within them; refining without saying why, when the log's final column is where the learning is.
OR WITHIN A CONCEPT, AND BETWEEN CONCEPTS
✓
("employee turnover" OR attrition) AND retail
either name, but in retail
✗
turnover OR retail
OR between concepts broadens disastrously
FURTHER REFINEMENTS WORTH CREDITING
A date filter (e.g. since 2015), for currency
-financial or -asset
to remove residual finance hits
intitle:turnover
to restrict a term to titles
frontline OR "service sector"
to sharpen the population
COMMON FAULTS TO CORRECT
Treating hit counts as the goal: the test is
first-page quality, not smallness
Stacking AND terms until nothing survives
Writing OR between concepts instead of within them
Refining without saying why: the log's final column
is where the learning is