The IWQOL-Lite-CT is a 20-item, FDA-aligned patient-reported outcome measure designed to evaluate physical and psychosocial functioning in weight-management trials. Psychometrically validated for high reliability and sensitivity to weight changes, the tool uses a 0–100 scale to measure improvements in obesity clinical studies. For validation details and the instrument, refer to the study at RTI Health Solutions ResearchGate
Validation of a new measure of quality of life in obesity trials iwqol-lite-ct pdf
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Scoring: Items use a 5-point scale (e.g., "Never" to "Always"). Scores are transformed to a 0–100 scale, where 100 represents the best possible quality of life. Psychometric Review Performance Reliability Excellent Psychometric Review Performance Reliability Excellent