Manuel B. Garcia

Manuel B. Garcia serves as the Senior Director for Educational Technology and Digital Learning at FEU Institute of Technology, Manila, Philippines. Read More

Contact Info

1607, FEU Tech Building,
P. Paredes St, Sampaloc,
Manila, Philippines
mbgarcia@feutech.edu.ph

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Part 02 · Discover

Finding What the Literature Really Says

Find relevant scholarly literature, conduct a focused literature review, evaluate existing research, and synthesize the evidence to understand what is already known, what remains uncertain, and where your study fits.

Why This Stage Matters

The literature holds more than a list of answers.

Finding papers is relatively easy. Understanding what a body of literature actually says is much harder. Researchers must look beyond individual articles to recognize patterns, disagreements, influential ideas, unanswered questions, and the evidence that has shaped current understanding of a research problem.

Doing that requires more than collecting sources that mention the same topic. Researchers need to search systematically, evaluate the relevance and credibility of studies, read findings critically, organize evidence around meaningful ideas, and distinguish established knowledge from claims that remain uncertain or contested.

A useful literature review eventually becomes more than a record of previous research. By comparing studies and connecting their findings, researchers can see how knowledge has developed, where explanations compete, which questions remain unresolved, and where a new study can make a meaningful contribution.

Start Here

Start with the first question in this stage.

If you're working through this part from the beginning, this is the first guide in the sequence.

01
First Guide

What Is a Literature Search Actually Supposed to Accomplish?

A literature search is not simply an exercise in finding as many papers as possible. Its purpose depends on what you need the literature to help you understand, decide, or establish in your research.

Start the Guide →
Part 02 · 61 Sections · 247 Guides

From searching to synthesis

Learn how to find, evaluate, organize, and synthesize scholarly literature without becoming overwhelmed by it.

12
how to do a literature search How to Do a Literature Search: A Step-by-Step Guide for Researchers
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13
searchable research question How Do You Turn a Research Question Into a Searchable Question?
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14
research question search terms What Concepts From Your Research Question Should Actually Become Search Terms?
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15
searchable concepts How Do You Break a Complex Research Question Into Searchable Concepts?
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16
search research question as a phrase Should You Search the Entire Research Question as One Phrase?
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17
initial literature search How Broad Should Your Initial Literature Search Be?
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18
literature search too broad How Do You Know When Your Literature Search Is Too Broad?
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19
literature search too narrow How Do You Know When Your Literature Search Is Too Narrow?
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20
inclusion and exclusion criteria Should You Decide Your Inclusion and Exclusion Criteria Before Searching?
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21
literature search date range What Date Range Should You Use for a Literature Search?
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22
how far back to search literature How Far Back Should You Search the Literature?
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23
literature search language restrictions Should You Restrict a Literature Search by Language?
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24
search only peer-reviewed literature Should You Search Only Peer-Reviewed Literature?
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25
how many databases to search How Many Databases Do You Actually Need to Search?
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26
searching more databases Does Searching More Databases Automatically Make a Literature Search Better?
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27
reproducible literature search What Should You Record So You Can Reproduce Your Literature Search Later?
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28
Scopus vs Web of Science vs Google Scholar Scopus vs. Web of Science vs. Google Scholar: Which Should You Use?
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29
PubMed vs MEDLINE PubMed vs. MEDLINE: What’s the Difference?
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30
subject-specific vs multidisciplinary databases Subject-Specific vs. Multidisciplinary Databases: Which Should You Search?
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31
Google Scholar vs Google for research Google Scholar vs. Google: When Is Each Useful for Research?
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32
is Google Scholar enough for a literature review Is Google Scholar Enough for a Literature Review?
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33
Scopus vs Web of Science coverage Does Scopus Contain Everything in Web of Science, or Vice Versa?
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34
why database search results differ Why Does the Same Search Produce Different Results in Different Databases?
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35
university library discovery system Should You Search Your University Library Discovery System?
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36
when to search specialized databases When Should You Search Specialized Databases in Your Field?
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37
no access to research database What Should You Do When You Don’t Have Access to a Major Research Database?
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38
can one database be enough for a literature review Can One Database Be Enough for Some Research Questions?
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39
database coverage for research How Do You Know Whether a Database Actually Covers Your Field?
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40
should you search preprint servers Should You Search Preprint Servers?
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41
should you search thesis and dissertation databases Should You Search Thesis and Dissertation Databases?
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42
when to search conference proceedings When Should You Search Conference Proceedings?
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43
how to find government reports and policy documents Where Do You Find Government Reports, Policy Documents, and Other Nonjournal Research?
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44
how to search academic databases How to Search Academic Databases Like a Researcher: Keywords, Boolean Operators, and Search Strategies
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45
keywords vs subject headings Keywords vs. Subject Headings: What’s the Difference?
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46
controlled vocabulary What Are Controlled Vocabularies, and When Should You Use Them?
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47
MeSH terms and keywords MeSH Terms and Other Subject Headings: Do You Still Need Keywords?
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48
how to find search terms for research How Do You Find All the Different Terms Researchers Use for the Same Concept?
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49
acronyms and spelling variations in database searches Should You Include Acronyms, Abbreviations, and Spelling Variations in Your Search?
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50
search historical terminology in academic databases How Do You Search for a Concept That Has Changed Names Over Time?
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51
Boolean operators AND vs. OR vs. NOT: What Do Boolean Operators Actually Do?
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52
Boolean NOT operator When Does Using NOT Accidentally Remove Relevant Research?
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53
phrase searching truncation wildcards What Are Phrase Searching, Truncation, and Wildcards, and When Should You Use Them?
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54
proximity searching What Is Proximity Searching, and When Is It Better Than AND?
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55
title vs abstract vs keyword searching Title vs. Abstract vs. Keyword Searching: Where Should You Search?
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56
full-text searching research articles Should You Search the Full Text of Articles When Searching for Research?
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57
parentheses in database searches How Do Parentheses Change a Database Search?
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58
search syntax across research databases Why Does the Same Search Syntax Not Work in Every Research Database?
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59
translate search strategy between databases How Do You Translate a Search Strategy From One Database to Another?
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60
database search returns too many results What Should You Do When Your Search Returns Thousands of Results?
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61
database search returns too few results What Should You Do When Your Search Returns Almost Nothing?
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62
improve search strategy without changing research question How Do You Improve a Search Without Quietly Changing the Question?
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63
when to stop adding search terms When Should You Stop Adding Search Terms to Your Academic Database Search?
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64
citation chaining How Do You Find Research That Your Keyword Search Missed? A Guide to Citation Chaining
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65
backward vs forward citation searching Backward vs. Forward Citation Searching: What’s the Difference?
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66
snowball searching What Is Snowball Searching, and When Should You Use It?
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67
how to find seminal papers How to Find Seminal Papers and the Most Important Studies in Your Field
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68
what makes a paper seminal What Makes a Paper “Seminal” in the First Place?
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69
does highly cited mean important Does a Highly Cited Paper Automatically Mean It Is Important?
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70
how to find older research with different terminology How Do You Find Important Older Research When Modern Terminology Didn’t Exist Yet?
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71
how to find studies using different terminology How Do You Find Studies That Use Different Terminology From Yours?
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72
related article search What Are Related-Article and Similar-Paper Searches, and Can You Trust Them?
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73
use review articles to find studies Can Review Articles Help You Find Studies Your Database Search Missed?
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74
how to search research by author How Do You Search by Author When Certain Researchers Dominate a Field?
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75
search reference lists of included studies When Should You Search the Reference Lists of Included Studies?
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76
when to stop citation chaining How Far Should Citation Chaining Go Before It Becomes Unproductive?
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77
citation chaining different literature What Should You Do When One Important Paper Seems to Lead to an Entirely Different Literature?
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114
which papers to include in a literature review How Do You Decide Which Papers Actually Belong in Your Literature Review?
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115
relevance vs quality in a literature review Relevance vs. Quality: Does a Paper Need Both to Be Included?
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116
do you need to read every paper in a literature review Should You Read Every Paper Your Search Finds?
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117
title and abstract screening What Should You Look for When Screening Titles and Abstracts?
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118
when to retrieve full text of a paper When Should You Retrieve the Full Text of a Paper?
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119
abstract insufficient for study selection What Should You Do When the Abstract Doesn’t Give Enough Information to Decide?
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120
how to apply inclusion and exclusion criteria How Strictly Should You Apply Inclusion and Exclusion Criteria?
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121
change inclusion criteria after screening Can You Change Your Inclusion Criteria After Screening Has Started?
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122
important study does not meet inclusion criteria What Should You Do When an Important Study Doesn’t Meet Your Original Criteria?
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123
exclude old studies from literature review Should You Exclude a Study Just Because It Is Old?
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124
exclude studies from another country Should You Exclude Research From a Different Country or Population?
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125
multiple papers from the same study How Do You Handle Multiple Papers From the Same Study or Dataset?
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126
duplicate publications in literature review What Are Duplicate Publications, and How Can They Distort a Literature Review?
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127
how to record reasons for study exclusion How Do You Keep Track of Why Studies Were Excluded?
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128
two reviewers literature screening Do You Need Two People to Screen the Literature?
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129
when to use a PRISMA flow diagram When Does Study Selection Need a PRISMA Flow Diagram?
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130
how to read a research paper efficiently How to Read a Research Paper Efficiently Without Reading Every Word
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131
how to read a research paper Do You Have to Read a Research Paper From Beginning to End?
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132
what to read first in a research paper What Should You Read First When You Open a Research Paper?
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133
where to start reading a research paper Abstract, Methods, Results, or Discussion: Where Should You Start?
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134
how to decide if a research paper is worth reading How Do You Decide Whether a Paper Is Worth Reading in Full?
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135
how much of a research paper do you need to understand How Much of Every Paper Do You Actually Need to Understand?
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136
how to read the methods section of a research paper When Should You Read the Methods Section Closely?
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137
how to read statistical results in a research paper How Do You Read a Statistical Results Section When You Aren’t a Statistician?
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138
how to evaluate the discussion section of a research paper Should You Trust the Authors’ Interpretation in the Discussion?
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139
how to read a research paper outside your field How Do You Read a Paper Outside Your Own Discipline?
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140
how to understand research methods and analysis What Should You Do When You Don’t Understand the Methods or Analysis?
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141
how to take notes on a research paper How Do You Take Notes Without Rewriting the Entire Paper?
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142
what information to extract from a research paper What Information Should You Extract From Every Study You Read?
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143
how to remember research papers you read How Do You Avoid Forgetting Why a Paper Was Important Six Months Later?
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144
how to critically evaluate a research paper How to Critically Evaluate a Research Paper: What Should You Actually Look For?
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145
does peer review mean a study is reliable Does Peer Review Mean a Study Is Reliable?
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146
can a prestigious journal publish a weak paper Can a Paper Be Published in a Prestigious Journal and Still Be Weak?
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147
methodological limitation vs fatal flaw How Do You Tell a Methodological Limitation From a Fatal Flaw?
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148
does the study design answer the research question How Do You Know Whether the Study Design Actually Answers the Research Question?
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149
how to evaluate a research sample How Do You Judge Whether the Sample Was Appropriate?
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150
how to evaluate research measures How Do You Know Whether the Measures Were Good Enough?
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151
does the analysis match the research design How Do You Tell Whether the Analysis Matches the Design?
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152
how to recognize overstated research results How Do You Recognize When Authors Are Overstating Their Results?
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153
how to evaluate causal claims in research What Should You Look for When a Paper Makes a Causal Claim?
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154
study limitations How Much Should Study Limitations Affect Whether You Trust the Findings?
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155
small sample size in research Does a Small Sample Automatically Make a Study Weak?
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156
large sample size in research Does a Large Sample Automatically Make a Study Strong?
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157
how to evaluate qualitative research How Do You Evaluate Qualitative Research Without Applying Quantitative Standards to It?
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158
how to evaluate mixed-methods research How Do You Critically Evaluate Mixed-Methods Research?
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159
how to evaluate a systematic review How Do You Evaluate a Systematic Review or Meta-Analysis?
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160
how to check if a paper is retracted How Do You Know Whether a Paper Has Been Corrected or Retracted?
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161
citing retracted papers Should You Use a Retracted Paper in a Literature Review?
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162
problems with a research paper What Should You Do When You Discover That an Important Paper Has Serious Problems?
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163
conflicting research findings What Should You Do When Research Studies Reach Different Conclusions?
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164
can one study overturn previous research Does One New Study Overturn Everything That Came Before It?
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165
contradictory research findings How Do You Tell a Genuine Contradiction From Studies Asking Different Questions?
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166
population differences in research studies Could Different Populations Explain Why Two Studies Disagree?
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167
different outcome measures in research Could Different Measures Explain Why Studies Reach Different Conclusions?
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168
different research designs conflicting findings Could Different Research Designs Explain Conflicting Findings?
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169
different statistical analyses conflicting results Could Different Analyses Produce Apparently Contradictory Results?
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170
positive and null study results How Should You Interpret a Field Where Some Studies Are Positive and Others Are Null?
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171
should larger studies be given more weight Should Larger Studies Automatically Be Given More Weight?
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172
newer studies vs older studies Should Newer Studies Automatically Be Trusted More Than Older Ones?
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173
how to weigh research evidence How Do You Decide Which Evidence Deserves More Weight?
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174
highest-quality studies disagree with majority What Does It Mean When the Highest-Quality Studies Disagree With the Majority?
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175
inconsistent research evidence When Is the Evidence Truly Inconsistent Rather Than Simply Complex?
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176
how to write about conflicting research findings How Do You Write About Disagreement Without Pretending the Literature Has One Clear Answer?
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189
how to use reference managers effectively How to Use Zotero, Mendeley, EndNote, and Reference Managers Effectively
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190
reference manager for academic research Do You Actually Need a Reference Manager for Academic Research?
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191
Zotero vs Mendeley vs EndNote Zotero vs. Mendeley vs. EndNote: Which One Fits Your Research Workflow?
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192
when to add a paper to reference library When Should You Add a Paper to Your Reference Library?
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193
how to organize a reference manager How Should You Organize Collections, Folders, Tags, and Notes in a Reference Manager?
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194
prevent duplicate references How Do You Prevent Duplicate References From Taking Over Your Reference Library?
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195
fix incorrect citation metadata What Should You Do When Imported Citation Metadata Are Wrong?
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196
research identifiers DOI, PMID, ISBN, and Other Identifiers: Which Ones Actually Matter?
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197
attach PDFs to reference manager Should You Attach PDFs to Your Reference Manager?
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198
switch reference managers without losing annotations How Do You Keep Annotations and Notes When Switching Reference Managers?
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199
automatically generated citations Can You Trust Citations Automatically Generated by Reference Managers?
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200
reference managers incorrect references Why Do Reference Managers Sometimes Produce Incorrect References?
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201
check reference manager bibliography What Should You Check Before Trusting a Reference Manager’s Bibliography?
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202
reference library across multiple research projects How Do You Keep the Same Reference Library Across Multiple Research Projects?
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242
meta-synthesis vs meta-analysis What Is a Meta-Synthesis, and How Is It Different From Meta-Analysis?
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243
literature review protocol Do You Need a Protocol for a Literature Review?
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244
preregister systematic scoping review Should You Preregister a Systematic or Scoping Review?
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245
two reviewers systematic review Do You Need Two Reviewers for a Systematic Review?
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246
literature review research project When Is a Literature Review Large Enough to Be a Research Project of Its Own?
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247
review question reviewed too recently How Do You Know When a Review Question Has Already Been Reviewed Too Recently to Justify Another Review?
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203
how to write a literature review that synthesizes How to Write a Literature Review That Synthesizes Instead of Summarizes
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204
summary vs synthesis Summary vs. Synthesis: What’s the Difference?
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205
synthesize research What Does It Actually Mean to Synthesize Research?
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206
literature review argument How Do You Move From “Study A Found...” to an Argument About the Literature?
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207
how to organize a literature review Should a Literature Review Be Organized by Studies or by Ideas?
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208
identify themes in literature review How Do You Identify Themes Without Forcing Papers Into Artificial Categories?
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209
synthesize studies with different methods How Do You Synthesize Studies That Use Different Methods?
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210
synthesize quantitative and qualitative evidence How Do You Synthesize Quantitative and Qualitative Evidence Together?
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211
synthesize noncomparable studies How Do You Handle Studies That Cannot Be Directly Compared?
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212
weigh research evidence How Do You Give More Weight to Stronger Evidence Without Ignoring Weaker Studies?
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213
synthesize heterogeneous literature How Do You Synthesize Literature When Almost Every Study Is Different?
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214
synthesize conflicting evidence How Do You Write About Conflicting Evidence Without Simply Listing Both Sides?
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215
consistent pattern in research How Do You Distinguish a Consistent Pattern From a Convenient Narrative?
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216
avoid overstating literature certainty How Do You Avoid Making the Literature Look More Certain Than It Really Is?
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217
what the literature establishes How Do You Identify What the Literature Actually Establishes?
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218
unanswered questions in literature How Do You Identify What the Literature Still Cannot Answer?
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When You're Ready to Move On

The literature now needs a research structure.

Once you understand what is already known, the next task is connecting your question to concepts, constructs, theory, and a defensible research foundation.

Next · Part 03

Building a Foundation Your Study Can Stand On

Build a strong research foundation by connecting your research question to theory, concepts, constructs, variables, hypotheses, and a framework that clearly explains what your study investigates.

Continue to Part 03 →