Developed to aid children with learning difficulties, from mental retardation or brain injury to maladjustment or physical or environmental handicaps, the joint school services program provides psychological evaluation and prescription development. The handbook reviews theories of child development and surveys behavior modification and reinforcement theory, including vocabulary, summary, and bibliography. Also, psychological tests and techniques for measuring intelligence, personality, and achievement are listed and explained. Over one-fourth of the document consists of procedures and forms for referrals and case histories at both elementary and secondary levels, for the consultant's report, and for followup. (JD)