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Establish psychometric properties of research instruments. Reliability assessment: 1. Internal consistency: Cronbach's α > 0.70 for research, > 0.90 for clinical decisions. 2. Test-retest: correlation between administrations 2-4 weeks apart (r > 0.80). 3. Inter-rater reliability: agreement between o...
Create reliable and valid survey instruments. Design process: 1. Literature review to identify existing validated scales. 2. Define constructs clearly, create item pool (3-5 items per construct). 3. Expert review panel (5-7 subject matter experts) for content validity. 4. Pilot testing with 30-50 pa...