Methods of validating a questionnaire
Validity is the amount of systematic or built-in error in measurement (Norland, 1990).
The following questions are addressed in Step 4: Addressing these questions coupled with carrying out a readability test enhances questionnaire validity.
Abstract Questionnaires are the most widely used data collection methods in educational and evaluation research.
This article describes the process for developing and testing questionnaires and posits five sequential steps involved in developing and testing a questionnaire: research background, questionnaire conceptualization, format and data analysis, and establishing validity and reliability.
Development of a valid and reliable questionnaire is a must to reduce measurement error.
Groves (1987) defines measurement error as the "discrepancy between respondents' attributes and their survey responses" (p. Development of a valid and reliable questionnaire involves several steps taking considerable time.