Obtaining Validity Evidence by Cognitive Interviewing to Interpret Psychometric Results
Abstract
The latest edition of the Standards for Educational and Psychological Testing (APA, 1999) promotes the analysis of respondents’ response processes in order to obtain evidence about the fit between the intended construct and the response process produced. The aim of this paper was twofold. First, we assess whether cognitive interviewing can be used to gather such validity evidence, and secondly, to analyze the usefulness of the evidence provided for interpreting the results from traditional psychometric analysis. The usefulness of the Cognitive Interviewing Reporting Framework (Boeije & Willis, 2013) for reporting the cognitive interviewing findings was also evaluated. As an empirical example, we tested the (Spanish language) APGAR family function scale. A total of 21 pretest cognitive interviews were conducted, and psychometric analyzes were conducted of data from 28,371 respondents who were administered the APGAR scale. Results and utility of CIRF as a reporting framework are discussed.
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