Presentation on theme: "Systematic Approaches to Literature Reviewing"— Presentation transcript:
1Systematic Approaches to Literature Reviewing Presenter:Dr. Derek Richardsderek.richards [at] tcd.ie
2Workshop Overview explain elements of the systematic review process explore how these might be used or adapted to support:- a thesis literature review;- approaches to keeping up-to-date with the literature through a PhD
3Literature Matters disciplinary perspective connection to findings coverageworkingunderstandingcriticalappraisalscholarlinessliterature useFrom Holbrook et al (2007)
5Systematic ReviewsA review of a clearly formulated question that uses systematic and explicit methods to identify, select and critically appraise relevant research.fromLiterature Reviews:More than a description of current research/knowledge of a topic areaCritically evaluate theoretical positions and quality of research studiesSystematic Approach:More than summary“Same level of rigour to reviewing research evidence as used in producing the research evidence” (www.evidence-based-medicine.co.uk)“Find all relevant studies published and unpublished, assess each study, synthesise the findings from individual studies in unbiased way and present balanced and impartial summary of findings with due consideration of any flaws in the evidence.” (www.evidence-based-medicine.co.uk)Describe the method used to conduct the rigourous search
6Systematic ReviewsReaders need to be able to judge whether all of the relevant literature is likely to have been found, and how the quality of studies was assessed.
7Key features - the systematic review process invites you to adopt– Explicit and transparent methodsA standard set of stagesAccountable, replicable and updateable
8To summarise … A clearly formulated question The use of systematic and explicit methodsA critical appraise of the relevant research
9What is your research question? 1. Formulating a ProblemWhat is your research question?- Specific -- Focused -- Clearly formulated -- Well defined -
10What is your research question? 1. Formulating a ProblemWhat is your research question?Take a few moments and write down your research question.
11Computer-based psychological treatments for depression: 1. Formulating a ProblemOne ExampleComputer-based psychological treatments for depression:A systematic review and meta-analysis
122. Locating and selecting studies Phase 1- Identify the Researcha broad but defined, systematic sweepDefined search termsOnline self-help treatment for depression,Web-based intervention for depression,Online depression treatments,Computerized (+Computerised) cognitive behaviour therapy for depression,Internet (+delivered) treatment for depression.
132. Locating and selecting studies Phase 1- Identify the Researcha broad but defined, systematic sweepDefined search arenaA. Databases, citation indices, reference lists from primary and review articles, grey literature, conference proceedings, research registers, the internet, individual researchers/practitionersA search of three databases (EMBASE, PubMed, and PsychINFO including PsychARTICLES)B. Other broad search limits, e.g. language, date:studies published in English in peer-reviewed journals in the last 10 years (March 2001–March 2011)the authors decided that the years represented a meaningful timeframe in terms of contemporary technologies, advances in multimedia, and broadband developments.
142. Locating and selecting studies Phase 2- Selectionselect from research using criteria related to your research questionInclusion and Exclusion CriteriaDevelop inclusion or exclusion statements, these might relate to study outcomes, research design, methods used, population worked with etc.e.g.studies with a mixed population of men and women,only random control trials,maximum exposure time of 10mins
152. Locating and selecting studies Phase 2- Selectionselect from research using criteria related to your research questionInclusion and Exclusion CriteriaIncluded studies could be deployed using a variety of different computer-based technologies, synchronously and asynchronously, they could be solely self-administered or therapist-led; or a blended delivery using both.Study participants had to be adults (18+years) with depression (self-report or diagnosis), established using valid and reliable measures, whom may also have had comorbidity, e.g. anxiety or physical health problems.Studies included were published in peer reviewed journals in English in the last 10 years,investigated a computer-based treatment for depression, and includedParticipants could be from the general population or a clinical group so long as depression was specifically measured.Preliminary research into recent developments in computerized paradigms for depression such as cognitive bias modification (CBM) based interventions were not considered for inclusion
163. Critical appraisal of studies “Assessing the quality of methodology isa critical part of the systematic review process”You will need to make decisions on all aspects of the review and simply justify what you decide, making sure its credible and meets the criteria that it is transparent, replicable and updateable.
173. Critical appraisal of studies “Assessing the quality of methodology isa critical part of the systematic review process”
183. Critical appraisal of studies In field/ disciplineBrainstorm the range of research variance that existsthat can be used to discriminatebetween studies and write a review:e.g. in methodological approaches,theoretical stances, or in relation to other factors …
193. Critical appraisal of studies Computer-based psychological treatments for depression:Programs and their contentMethodological characteristicsObjectives of the studiesRecruitment, sample types and sizesEligibility criteria employedOutcome measures usedSupport type and communication mode in the studiesOutcomes, support types and dropoutSatisfactionLimitations
203. Critical appraisal of studies What?When?Who?Where?Why?How?What if?DescriptionAnalysisEvaluationSo what?What next?Learning Development University of PlymouthModel to Generate Critical ThinkingTopic
21Other ideas and options Speed readingEndnoteDatabases in my areaData mining techniquesRecording
22SR websitesCentre for Evidence-based Conservation -http://www.cebc.bangor.ac.uk/Centre for Reviews and Dissemination (medical) -http://www.york.ac.uk/inst/crd/index.htmCochrane Collaboration (international- medical) -http://www.cochrane.org/EPPI-Centre, Institute of Education -Social Policy and Social Care -http://www.york.ac.uk/inst/chp/srspsc/index.htmIf you read one article, an example here of a review of the ways studies in reviews are appraised -If you prefer power-point, how about this one on mixed method reviews