Procedures for performing systematic reviews ppt lsj
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description
Procedures for Performing Systematic Review. This is general guideline for undertaking systematic reviews.The goal of this document is helpful for preparing systematic paper.
Transcript of Procedures for performing systematic reviews ppt lsj
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l concept of rigorous reviews
guidelines
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l introduction systematic reviews
stages
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identifying evaluating interpreting
Reasons for Performing Systematic Reviews
• summarise existing evidence
• identify
• provide
• scientific value
• predefined search strategy
• completeness
The Importance of Systematic Reviews
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identifying evaluating interpreting
Advantages and disadvantages
• provide information effects
phenomenon
• combine meta-analytic
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Planning Conducting Reporting
The stages associated with planning the review are:
• need
• Development
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• Selection
• assessment
• extraction monitoring
• synthesis
The stages associated with conducting the review are:
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need for a systematic review
CRC [12] suggests the following checklist:
• objectives
• restrictions
• inclusion/exclusion criteria
• assess the quality
• extracted
• synthesised
combined
• conclusions flow evidence
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need for a systematic review
From a more general viewpoint, Greenlaugh [9] suggests the following questions:
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reduce the possibility researcher bias
most important activity research question.
The Research Question
In software engineering, questions can be adapted to software engineering issues as follows:
< Question Types >
• effect
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• Identifying cost and risk factors
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populationinterventionsoutcomes
< Population >
• role
• type
• application area
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< Intervention >
• software technologies
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< Outcomes >
• factors
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populationinterventionsoutcomes
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surrogate measures misleading
less robust.
Protocol Review
• critical element
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review start
Identification of Research
• find primary studies
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Generating a search strategy>
• iterative benefit
research question
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review start
Generating a search strategy>
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population, intervention, outcomes, study designs.
• synonyms, abbreviations, and alternative spellings.
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Identification of Research
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Generating a search strategy>
Initial searches electronic
databases
• Reference lists review articles
• Journals grey
literature conference proceedings
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positive resultsnegative results.
Publication Bias
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Documenting the Search
• transparent replicable
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Documenting the Search
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5. Conducting the review
• 5.1 Identification of Research – 5.1.1 Generating a search strategy
Baron-Cohen S, Jolliffe T, Mortimore C, Robertson M. Another advanced test of theory of mind: evidence from very high functioning adults with autism or asperger syndrome. Journal of Child Psychology and Psychiatry 1997;38:813–22. Baron-Cohen S, Ring HA, Wheelwright S, Bullmore ET, Brammer MJ, Simmons A, et al. Social intelligence in the normal and autistic brain: an fMRI study. European Journal of Neuroscience 1999;11:1891–8.
• 관련 논문의 Reference를 참조하여 중요 논문들을 찾음
5. Conducting the review
• 5.1 Identification of Research – 5.1.1 Generating a search strategy
• Journals (including company journals such as the IBM Journal of Research and Development), grey literature (i.e. technical reports, work in progress) and conference proceedings.
• Grey literature : 정식 시판되는 거시 아닌 기관에서 만든 보고서, 학술적인 기술보고서 등 Neuropsychologia Journal of Cognitive Neuroscience Journal of Child Psychology and Psychiatry European Journal of Neuroscience Journal of Child Psychology and Psychiatry
• Internet
5. Conducting the review
• 5.1 Identification of Research – 5.1.3 Documenting the Search
– Wikipedia
List of academic databases and search engines
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Study selection criteria
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• research question
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Japanese or Chinese
papers are often difficult to access
• authors,
institutions, journals or year of publication
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Study selection process
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Reliability of inclusion decisions
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Reliability of inclusion decisions
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Quality Thresholds
• Study design
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Quality Thresholds
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•Table 5 disease condition
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Using the Quality Instrument
Quality appraisal
synthesis of results
Limitations of Quality Assessment
• possible assume something wasn’t reported,
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Data Extraction
objective of this stage data extraction forms
Contents of Data Collection Forms
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Data Synthesis
Descriptive synthesis
Quantitative Synthesis
Quantitative data
Sample size
effect size
mean values confidence
interval
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Presentation of Quantitative Results
presenting quantitative results forest plot
• means variance
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size restriction.
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Structure for systematic review
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Peer Review
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• Experts review
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researchers and practitioners, it is worth organising a peer review.
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. Final remarks
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