Methods of validating a questionnaire

Systematic development of questionnaires is a must to reduce many measurement errors.Following these five steps in questionnaire development and testing will enhance data quality and utilization of research.After developing a thorough understanding of the research, the next step is to generate statements/questions for the questionnaire.In this step, content (from literature/theoretical framework) is transformed into statements/questions.This article describes the sequential steps involved in the development and testing of questionnaires used for data collection.

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For example, the researcher must indicate what the questionnaire is measuring, that is, knowledge, attitudes, perceptions, opinions, recalling facts, behavior change, etc.Following IRB approval, the next step is to conduct a field test using subjects not included in the sample. An analysis of research designs used in agricultural and extension education.Make changes, as appropriate, based on both a field test and expert opinion. In this final step, reliability of the questionnaire using a pilot test is carried out. Reliability indicates the accuracy or precision of the measuring instrument (Norland, 1990). Questionnaires are the most frequently used data collection method in educational and evaluation research.Questionnaires help gather information on knowledge, attitudes, opinions, behaviors, facts, and other information.

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