In 1977 more than 2500 Israeli student-teacher applicants were tested on a variety of cognitive and affective measures. Based on multivariate analytical techniques, the results showed three selection phases: 1. Self-selection by the potential teacher for the vocation, characterized by a conservative modal personality. 2. Admission by the teacher-training program, when the more able students are accepted. 3. Election, once admitted, to undergo the course of instruction. This phase cancels cognitive ability differences apparent in the admission phase; and elevates personality traits of a conforming and a conservative type, as the most discriminatory modality between future teachers and those who elected not to become teachers. The findings are discussed in terms of a type-placement model.This study investigates the possibility of a type-placement model (Cattell & Klein, 1977), which concentrates on the question: 'Does individual A belong to type X?' In the context of the teaching profession the question is: 'In what ways do the individuals available for selection resemble each other?' and whether such a resemblance is intentional, or can be detected from selection procedures. The major argument of this paper is that regardless of efforts in selecting student teachers on the basis of ability tests, the end result is a perpetuation of a unique occupational group, characterized by specific personality attributes.This perpetuation is achieved through five consecutive phases of selection.