A
Control
n=21 persons B
Treatment
n=25 persons C
Treatment
n=16 persons
Lecture-discussion
Technique
2 two-hour class sessions
Evaluation by writ ten tests Microcomputer assisted instruction(no experience)
Maximum of 4 hours for instruction Evaluation by writ ten test Record of actual time used Microcomputer assisted instruction(no experience)
Maximum of 4 hours for instruction Evaluation by writ ten test Record of actual time used