Discussion of various types of feedback used in computer-assisted instruction focuses on a study of low-ability eleventh graders that compared the effectiveness of answer until correct (AUC) feedback with knowledge of correct response (KCR) feedback. Achievement data on posttests as well as time data are analyzed. (11 references) (LRW)

This study compared the effects of televised and programed instruction on the achievement of students from rural and urban secondary schools in Nigeria. A pretest posttest control group design was used, and it was found that the two types of instruction had different effects for different locations and ability groups. (seven references) (LRW)