Psychometric Properties of a Structured Behavioral Interview to Hire Private Security Personnel

This paper reports on a study about the reliability and validity of a structured behavioral interview to assess private security personnel. Reliability was estimated using interrater coefficients. Two independent interviewers were used to rate each interviewee. Results show a reliability coefficient of .81 (N = 43) and .89 with Spearman-Brown correction for two raters. Validity was estimated using a content validation approach. This strategy was suggested by Lawshe (1975) to estimate the content validity of selection tests. So far, only two studies carried out by Schmitt and Ostroff (1986) and Carrier et al. (1990) have used Lawshe's strategy in the structured behavioral interview case. The interview consisted of seven questions and each was rated by 11 experts in the job. Results show a significant content validity ratio (CVR) for majority of the questions in the interview and a content validity index (CVI) of .89. Implications of these findings for the practice of the structured behavioral interview are discussed and future research is suggested.