Page 53 - Development of Questionnaires for Quantitative Medical Research

Questionnaires that are designed to

measure latent variables are the most difficult to

develop and validate because the measurement of

latent variables can often be subjective and how

the study subjects can perceive the parameters is

likely to differ between individuals. In the medical

field, a few examples of such questionnaires that

fall under this category are Medical Outcome

Study Short-form36 (MOS SF36), Depression

Anxiety Stress Scale (DASS) and Summary

Diabetes Self-care Activities (SDSCA) (Ware and

Sherbourne, 1992; Lovibond and Lovibond, 1995;