In the past two decades, methods for the development, evaluation, and testing of survey questionnaires have changed radically. Research has also begun to evaluate the strengths and weaknesses of alternative techniques, and to examine the generality and consistency of their results.
In the past two decades, methods for the development, evaluation, and testing of survey questionnaires have changed radically. Research has also begun to evaluate the strengths and weaknesses of alternative techniques, and to examine the generality and consistency of their results.