This booklet presents guidelines and procedures to facilitate the development and writing of performance objectives at different levels of specificity. Chapter 1 contains a brief review of performance objectives. Chapter 2 reviews behavioral variables under the three headings of cognitive variables, affective variables, and psychomotor variables. Chapter 3 deals with critiquing performance objectives. Chapter 4 describes the development of a program structure. Chapter 5 deals with performance objective elements at different levels of specificity. Appendixes include descriptions of instructional and institutional variables, answers to test items in chapters 1, 2, 3 and 5, and practice forms. (MBM)