This study of the effects of the Israeli rehabilitation system on disattached youth found little evidence that the programs examined had any impact. Israeli adolescents who neither work nor study are considered to be disattached. These youth are eventually absorbed into a variety of both voluntary and involuntary community residential educational and resocialization programs. Data on the characteristics of more than 3,600 youths who had been enrolled in one of 57 programs were gathered from the institutions themselves, social service agencies, the Police Authorities, and the Israeli Defense Forces. These data were analyzed to explain a youth's post-institutional delinquency and military performance as a function of both individual characteristics and the attributes of the program or institution with which the youth had been involved. Summary findings include the following: (1) there were few differences among the youth enrolled in the various programs; (2) the programs varied widely in organizational and programmatic attributes; (3) youths were neither more nor less delinquent after having attended most of the programs than before; and (4) there were few reliable program effects on military performance. Alternatives to the current approaches are discussed. Statistical data are presented on 21 tables. A list of 100 references is also appended. A list of publications in Hebrew and in English available from the National Council of Jewish Women Research Institute for Innovation in Education is also included. (FMW)