Procedures for performing systematic reviews ppt lsj

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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

l

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

• 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

• Identifying cost and risk factors

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populationinterventionsoutcomes

< Population >

• role

• type

• application area

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< Intervention >

• software technologies

< Outcomes >

• factors

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

Generating a search strategy>

• iterative benefit

research question

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review start

Generating a search strategy>

population, intervention, outcomes, study designs.

• synonyms, abbreviations, and alternative spellings.

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Identification of Research

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

Documenting the Search

• transparent replicable

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Documenting the Search

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

• research question

Japanese or Chinese

papers are often difficult to access

• authors,

institutions, journals or year of publication

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Study selection process

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

•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

• Experts review

researchers and practitioners, it is worth organising a peer review.

. Final remarks