Steps in validating research instruments

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.Scott Reuben, a once renowned anesthesiologist, went to prison and was publicly deemed the medical Bernie Madoff after he faked at least 21 published research studies, some of which showed positive results of painkillers made by companies that funded his research.

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Scales are devices used to quantify a subject's response on a particular variable.

Understanding the relationship between the level of measurement and the appropriateness of data analysis is important.

Determining who is the audience, their background, especially their educational/readability levels, access, and the process used to select the respondents (sample vs. A thorough understanding of the problem through literature search and readings is a must.

Good preparation and understanding of Step1 provides the foundation for initiating Step 2.

This article describes the sequential steps involved in the development and testing of questionnaires used for data collection.

Figure 1 illustrates the five sequential steps involved in questionnaire development and testing.

Which type of validity (content, construct, criterion, and face) to use depends on the objectives of the study.

The following questions are addressed in Step 4: Addressing these questions coupled with carrying out a readability test enhances questionnaire validity.

In a review of 748 research studies conducted in agricultural and Extension education, Radhakrishna, Leite, and Baggett (2003) found that 64% used questionnaires.

They also found that a third of the studies reviewed did not report procedures for establishing validity (31%) or reliability (33%).

Once researchers complete the study, consolidate findings, and draw conclusions, they normally submit the report or “paper” to a journal. This means a board of scholars in similar fields pertaining to the journal’s subject area review the submission for quality, importance, and editorial standards before the journal will publish it. Have you taken the steps to validate questionable information?

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