Page 53 - A Step-By-Step Guide to Questionnaire Validation Research

original item(s). Such a decision will have to be made

during the final phase of assessing the validity of a

questionnaire. A major limitation of using a modified

version of the questionnaire is that the results of a study

using a modified questionnaire may not be directly

comparable to those of other studies using the original

questionnaire. This is because the modified questionnaire

may contain a list of different items or domains from the

original questionnaire, and each of the items will have a

different scoring method for the designation of its domains

in the modified questionnaire.

Therefore, it is o en recommended for researchers

to retain the same number of items and/or constructs

within the domain subscales as far as possible. If this does

not prove feasible, then the last resort would be to derive a

modified version of the original questionnaire (Omar et.

al., 2011). However, if it is found that there are too many