Page 105 - A Step-By-Step Guide to Questionnaire Validation Research

Figure 3.2: Illustration of an actual example of
testing for validity based on an assessment of predictive
validity (Results obtained from Levy et. al., (1999))

Since the researchers will require a longer period of

time to detect any changes in the concrete endpoints or

outcomes when they assess the predictive validity of a

questionnaire, it is therefore a less popular form of validity

measurement. Nevertheless, predictive validity remains to

be a very useful measure of assessing how likely it is for