Evaluation of instructional technology: Introduction to the special issue EditorialNotes Pages: 189 - 191
The mexican telesecundaria: A cost-effectiveness analysis John K. MayoEmile G. McAnanySteven J. Klees OriginalPaper Pages: 193 - 236
The Open University: A survey and economic analysis Keith G. LumsdenCharles Ritchie OriginalPaper Pages: 237 - 291
Television, background characteristics and learning in El Salvador's educational reform Robert C. Hornik OriginalPaper Pages: 293 - 302
Performance models of American indian students on computer-assisted instruction in elementary mathematics P. SuppesJ. D. FletcherM. Zanotti OriginalPaper Pages: 303 - 313
Television video-tape systems for off-campus education: A cost analysis of SURGE Leslie Wagner OriginalPaper Pages: 315 - 332
The cost of instructional radio and television for developing countries Dean T. JamisonSteven J. Klees OriginalPaper Pages: 333 - 384
Evaluation of educational media: Some issues Martin CarnoyHenry M. Levin OriginalPaper Pages: 385 - 406