The purpose of this investigation was to analyze the relationship between four interviewer-related factors and the validity of the employment interview. Using a regression approach to meta-analysis, an analysis of 120 interview studies with a total sample size of 18,158 suggested that: (1) training should be provided to interviewers regardless of whether the interview itself (i.e. the questions and rating scales) is structured; (2) the same interviewer should be used across all applicants, especially when the interview itself is not highly structured; and (3) using a panel of interviewers does not contribute to validity, and may actually have a detrimental effect. Results for the fourth interviewer factor, taking notes during the interview, were inconclusive. Limitations and directions for future research are noted.
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Huffcutt et al. (1999) studied this question.
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