Additional file 6: of Reliability and validity of three questionnaires measuring context-specific sedentary behaviour and associated correlates in adolescents, adults and older adults BusschaertCedric De BourdeaudhuijIlse Van HolleVeerle ChastinSebastien CardonGreet De CockerKatrien 2015 Results of the test-retest reliability study of the older adults: Intraclass Correlation Coefficients (ICC), kappa and percentage agreement (item-specific). (PDF 395 kb)