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The study examined the validity of using the California Psychological Inventory (CPI) as a tool for police selection. The mean CPI profile of 211 police applicants was first compared to that of the CPI norms. Five performance criterion measures--retention on the job, academy grades, supervisory ratings, commendations, and reprimands of police officers--were studied to investigate their relationships with the CPI scales. The results indicated that there were significant mean differences on all the CPI scales between police applicants and CPI norms. The scale of Flexibility significantly differentiated the criterion groups of retention on the job. The CPI was useful in predicting academy performance; however, it did not correlate well with job performance as measured by supervisory ratings, commendations, and reprimands.

This study examined the validity of the Minnesota Multiphasic Personality Inventory (MMPI) as a predictor for police officer selection. The MMPI profiles of 212 police officer applicants selected to enter the training academy were compared to the standardized MMPI norms. Significant differences between the police officers and the normative population were found on all but two scales. When the average profile of officers still on the police force was compared with the average profile of terminated officers, two scales were significantly different. Significant correlations were obtained between four MMPI scales and the academy score criterion and two scales each for the commendation and supervisory rating criteria. A prediction equation was developed for academy score using multiple regression analysis.

In the study of Training and Selection of Police Officers: Toward a Community Police Model the researcher relied on data gathered using questionnaires distributed in a broad geographical range and among a diverse but relevant respondent population. Samples were obtained from police officers, and candidate officers in training and citizens from the southeastern and northeastern sections of the United States. Overall accuracy of survey documents is believed to be high. Survey documents were tested using a Chronbach's alpha test for validity and were constructed around a Likert type scale for responses. Analysis of data was accomplished using a one way analysis of variance (ANOVA) Tukey post hoc test with a .05 level of significance. Outcomes suggested a relationship between more conservative belief patterns among police officers and their post secondary education levels. Additional possibilities were noted in the overall training systems related to the police respondents as in alignment with current needs for traditional policing but, not necessarily adequate for community policing needs. These views also proceeded along educational lines. In addition, outcomes of researched based secondary education models constructed during the research, and even European models for police selection and training may offer some solutions for police in the United States. Other valuable points found during the study were indicators that careful personnel selection and college education when found in predominance among members, seemed to positively alter the general working environment of one police agency involved in the study. / Political Practice / D.Litt. et Phil.(Police Science)

In the study of Training and Selection of Police Officers: Toward a Community Police Model the researcher relied on data gathered using questionnaires distributed in a broad geographical range and among a diverse but relevant respondent population. Samples were obtained from police officers, and candidate officers in training and citizens from the southeastern and northeastern sections of the United States. Overall accuracy of survey documents is believed to be high. Survey documents were tested using a Chronbach's alpha test for validity and were constructed around a Likert type scale for responses. Analysis of data was accomplished using a one way analysis of variance (ANOVA) Tukey post hoc test with a .05 level of significance. Outcomes suggested a relationship between more conservative belief patterns among police officers and their post secondary education levels. Additional possibilities were noted in the overall training systems related to the police respondents as in alignment with current needs for traditional policing but, not necessarily adequate for community policing needs. These views also proceeded along educational lines. In addition, outcomes of researched based secondary education models constructed during the research, and even European models for police selection and training may offer some solutions for police in the United States. Other valuable points found during the study were indicators that careful personnel selection and college education when found in predominance among members, seemed to positively alter the general working environment of one police agency involved in the study. / Political Practice / D.Litt. et Phil.(Police Science)