Objective. To improve the reliability and discrimination of a pharmacy resident interview evaluation form, and thereby improve the reliability of the interview process. Methods. In phase 1 of the study, authors used a Many-Facet Rasch Measurement model to optimize an existing evaluation form for reliability and discrimination. In phase 2, interviewer pairs used the modified evaluation form within 4 separate interview stations. In phase 3, 8 interviewers individuallyevaluated each candidate in one-on-one interviews. Results. In phase 1, the evaluation form had a reliability of 0.98 with person separation of 6.56; reproducibly, the form separated applicants into 6 distinct groups. Using that form in phase 2 and 3, our largest variation source was candidates, while content specificity was the next largest variation source. The phase 2 g-coefficient was 0.787, while confirmatory phase 3 was 0.922. Process reliability improved with more stations despite fewer interviewers per station-impact of content specificity was greatly reduced with more interview stations. Conclusion. A more reliable, discriminating evaluation form was developed to evaluate candidates during resident interviews, and a process was designed that reduced the impact from content specificity.Keywords: psychometrics, interview, residency, reliability
INTRODUCTIONPostgraduate year 1 (PGY1) pharmacy residencies are increasingly prevalent in the United States; however, the pool of resident applicants has surpassed the number of available positions, 1 and professional organizations anticipate continued growth.2,3 Establishing a fair and objective process for selecting residents seems essential, and reliability of the process is a key characteristic in ensuring fairness in these candidate assessments. 4 An essential element during a resident selection process is the interview. Lack of validity, objectivity, reliability, and structure of the interview process exists in medical residency, 5-8 medical school 9 and pharmacy school admissions.
10Selecting the best candidates for pharmacy residency training is a difficult task. The ideal interview and selection process for residency candidates would be one that was efficient, objective, and produced reliable feedback/ information that could be used to make informed decisions. The survey questions asked and criteria used to make decisions appear to be fairly consistent among residency programs.11,12 Psychometric developments over the past few decades may help in increasing reliability of tools used in the interview process. The objective structured clinical examination (OSCE) was first discussed in 1979 and its interview "offspring," the multiple miniinterview (MMI), was described in 2003. Both showed promise for improving interview reliability. The overall concept and purpose of the MMI is to reduce the impact of content specificity, a concern in assessments, on the interview as compared to a traditional individual interview. [13][14][15] In the MMI, candidates rotate through interview stations where different...