Critical Appraisal Systems for Scientific Evidence
Definition
Purpose: Evaluate methodological quality across various study types (RCTs, cohort studies, case series, qualitative research, etc.).
Strengths: Detailed checklists tailored to each design; transparent criteria.
Limitations: Time-consuming; less commonly used in some medical specialties.
GRADE (Grading of Recommendations Assessment, Development and Evaluation)
Purpose: Rates certainty of evidence and strength of clinical recommendations.
Strengths: Widely endorsed by WHO, Cochrane, and others; integrates evidence with values/preferences.
Limitations: Complex for non-specialists; primarily designed for guideline development.
CASP (Critical Appraisal Skills Programme)
Purpose: Provides structured checklists for evaluating studies, especially qualitative and RCTs.
Strengths: Easy to use; ideal for teaching; widely adopted in nursing and public health.
Limitations: May oversimplify complex methodological issues.
Purpose: Assesses the quality of systematic reviews.
Strengths: Validated tool; helps distinguish high- from low-quality reviews.
Limitations: Not applicable to primary studies; requires familiarity with systematic review standards.
SIGN (Scottish Intercollegiate Guidelines Network) Checklists
Purpose: Appraise study quality for use in clinical guideline development.
Strengths: Emphasizes study design hierarchy and methodological rigor.
Limitations: More focused on clinical questions; less adaptable for broader research areas.
Comparative Summary Table
System | Best For | Key Features | Complexity | Widely Used |
JBI | Methodological quality | Design-specific checklists | Medium | ✓✓ |
GRADE | Clinical guideline development | Certainty + recommendation strength | High | ✓✓✓ |
CASP | Education and training | User-friendly checklists | Low | ✓✓ |
AMSTAR | Systematic reviews | 16-point validated tool | Medium | ✓✓ |
SIGN | Evidence for guidelines | Evidence level + quality rating | Medium | ✓✓ |
Best Prompts for Critical Appraisal Systems for Scientific Evidence
🔎 General Critical Appraisal
[Paste full abstract or article details here]
[Paste citation or summary]
📋 Joanna Briggs Institute (JBI)
[Insert abstract or key information]
[Insert article]
🌍 GRADE (Grading of Recommendations Assessment, Development and Evaluation)
Summarize the strength of the evidence in this article using GRADE criteria: risk of bias, inconsistency, indirectness, imprecision, and publication bias.
[Insert abstract or results section]
[Insert guideline or summary]
✅ CASP (Critical Appraisal Skills Programme)
[Insert study citation or abstract]
Apply the AMSTAR 2 checklist to this systematic review and determine if it is high, moderate, low, or critically low quality.
[Insert systematic review details]
⚖️ SIGN (Scottish Intercollegiate Guidelines Network)
[Insert article summary or results]
Compare the appraisal of the same study using JBI, CASP, and GRADE frameworks. Identify key differences in focus, scoring, and conclusions.
[Insert article]
Tip: These prompts can be used directly in ChatGPT or GPT-4 to train students, conduct systematic reviews, or evaluate clinical articles in your daily practice.