In a time when job opportunities are changing, the opinions of those who hire and supervise psychologists are important. To determine employer preferences in psychologist selection, 105 Philadelphia administrators completed a survey (39% response) rating the importance of various functions, areas of knowledge, and personal characteristics for professional psychologists. Factor analysis of the respondents' ratings of the three categories yielded the following "essential" components: six function factors (vocational, therapy, clinical appraisal, supervision, consultation, and bio-behavioral); two characteristics factors (innovative and treatment-oriented); and six knowledge factors (psychodiagnosis, applied learning, vocational, developmental knowledge, quantitative research methods, and biological areas). The pattern of correlations were further reduced into a practitioner-oriented and a scientist-oriented grouping. These findings are consistent with national studies of counseling and clinical psychology and as such have important implications for education, graduate students, and employers. A table shows the details of survey results. (Author/BL)