Fig. 1From: Psychometric properties of the complete version of the World Health Organization Quality of Life Assessment (WHOQOL-OLD): reduced response scaleDescription of the saturations, consistency, and WHOQOL-OLD Items Characteristic Curves (ICC). The vertical axis represents the probability of choosing the answer for the item. “nothing” (01), “medium” (02), and “completely” (03) (Response options to items). λ – Lambdas. CR - composite reliabilityBack to article page