The Instructional Improvement Questionnaire (IIQ) is a student rating form designed to provide evaluative feedback to instructors about their teaching. The IIQ was first developed at Southern Illinois University at Carbondale in 1969 and revised in 1972. The documents included here describe the development of the IIQ and research associated with it. Results from the IIQ may be used for teacher promotion and annual salary reviews, student course selection, and evaluating course effectiveness. Results are released only on authorization of the instructor. The present IIQ form has four parts: a student biographic section, an instructor evaluation section (20 items), a course evaluation section (20 items), and an optional item section where instructors can have students respond to as many as 60 items prepared by individual departments or faculty. Students respond directly on OpScan answer sheets which are computer processed. additional research reported deals with an effectiveness study of the evaluation of instruction program by the faculty in winter 1973, a cross-validation of the IIQ deciles from 1971 to fall 1972, norms for required and elective courses by course level for the IIQ--fall 1971, a summary of research on the relationships between student characteristics and student evaluations of instruction at Southern Illinois University, a description of effective college teaching in five disciplines as measured by student ratings, and evaluating instructional effectiveness with the IIQ. A copy of the IIQ is appended. (RC)