The author enumerates some criticisms of contingency management research that have been raised and reviews some studies of contingency management in order to clarify the strategy and tactics being followed and point out ways in which investigators have fallen short of their own criteria for sound research and valid conclusions." (Author/AA)

The Tri-Cycle Process described in the model permits for the first time an integrated system for designing an individualized instructional system that would permit a rational, diagnosis-prescription-evaluation system keyed to an accounting system. (Author)

A discussion of the problems in specifying resources, planning activities and anticipating results in designing educational projects. (HB)

A discussion of using individual expectancy scores rather than comparative group scores in evaluating achievement gains. (HB)

Author suggests means to help researchers deal with factor analysis as a tool for construct validation of educational objectives. (HB)

A presentation of a conceptual strategy for ascertaining data as to the sources of information utilized concerning the product and categories of formative evaluation activities. (Author)