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3.3 Understanding CASP Checklists for Research Quality

Jan 21, 2025

HLTH2024 Research Methods in Health

Module 3.3: CASP Checklists

Overview

  • Focuses on appraisal checklists, particularly CASP (Critical Appraisal Skills Programme).
  • Appraisal checklists aid evidence-based practitioners in evaluating research methods and reporting quality.

Importance of Reporting Quality

  • Essential for evidence-based practice.
  • High-quality evidence relies on high-quality reporting.
  • Peer-reviewed articles are preferred for their quality control.
    • Other sources: conferences, seminars, in-services.
    • Non-peer-reviewed sources may have less scrutiny and be less trustworthy.

Why Reporting Quality Matters

  • Research reports are often the only source of information about how studies are conducted.
  • Thorough reporting is needed to identify potential biases.
  • Incomplete reporting can conceal biases and affect the validity of conclusions.

Reporting Quality Checklists

  • Structured systems to appraise evidence quality, focusing on reporting.
  • Various checklists include:
    • CONSORT for randomized controlled trials.
    • STARD for diagnostic accuracy studies.
    • PRISMA for systematic reviews.
    • JBI appraisal tools.
  • CASP provides checklists for different study designs.

CASP Checklists

  • Provides eight different checklists:
    • Randomized controlled trials.
    • Systematic reviews.
    • Qualitative studies.
    • Cohort studies.
    • Diagnostic studies.
    • Case-control studies.
    • Economic evaluation.
    • Clinical prediction.
  • Each checklist offers a structured way of appraising reporting quality depending on study design.

CASP Checklist Structure

  • For RCTs:
    • 11 questions with yes/no/can't tell responses.
    • Free text justification and an overall appraisal section.
  • For qualitative studies:
    • 10 questions with similar response format.
    • No overall appraisal section for qualitative studies.

Other Appraisal Tools

  • CASP is part of a broader toolkit for evaluating research, alongside systems like GRADE and Levels of Evidence.

Module Summary

  • Evidence-based practices rely on well-reported research.
  • Several methods, including CASP, exist to appraise study and reporting quality.
  • The quality of reporting affects the ability to evaluate evidence validity, bias, and applicability.

Conclusion

  • Proper reporting is key for assessing research quality, guiding practice, and making informed healthcare decisions.

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