The 46 papers is this volume represent some of the most current thinking in educational communications and technology. Individual papers address the following topics: gender differences in the selection of elective computer science courses and in the selection of non-traditional careers; instruction for individuals with different cognitive styles; the teacher's role in integrating instructional technology; affective-cognitive learning; factors influencing mental effort; educational technology and integration; computer screen layout design; graphic format, cognitive style, and recall of quantitative data; semiotic theory and educational technology; international students and the use of educational media in their home countries; teachers and technology; elementary teachers, psychological types, and uses of educational computing; computer-based instruction, problem-solving skills, and middle-level students; secondary computer-based instruction in macroeconomics; distance education; learner control and interactive video; rules and higher order rules; satellite communications and high school education; best colors for audiovisual materials instruction; structure and organization in instructional text; instructional plans and situated learning; microcomputer-based instruction program strategies and verbal and visual testing; intelligent computer-assisted instruction; Fishbein Model and normative influences on behavior; and skipping of subordinate skills. Also included are a symposium on interactive video and Richard Clark's media research. Cumulative author and descriptor indexes for the 1989 conference proceedings are provided. (CGD)