how to test the effect of intervention on quality of life can a qol measure continue or change which of these variables would be considered to be a continuous iv? how to test effect of intervention on patient quality of life what type of research design would test quality of life qol is continuous or categorical what are the characteristics of a clinical intervention qol test for primary intervention how to test the effect of intervention on patient quality of life what measures qol what measures the impact of interventions on quality of life how to evaluate the impact of the intervention on patients quality of life qol definition qualitative how to assess an intervention how to test the effectiveness of a qol intervention how to test the effects of intervention how to test the effect of intervention on quality of life of a patient? how to test the effect of an intervention on quality of life which is a design that is largely continuous and can be converted to categorical? how to test the effect of intervention on patient quality of life