The intent of this study was to assess the content structure of college biology lectures and to determine the extent to which that structure differed in lectures by a given professor and among lectures of different professors. Content structure was based on the amount of contiguity and commonality of verbal elements between pairs of discourse…

The primary problem was to investigate the relationships between two methods of presenting biological information (lecture-laboratory and audio-tutorial) and students' attitudes toward biology and their terminal achievement. A total of 259 students from Grand Rapids Junior College, Grand Rapids, Michigan, participated while 136 students from…