This study compared the effectiveness of the traditional library lecture and computer-assisted instruction (CAI) in scheduled credit classes in library skills. Subjects were 18 college freshman attending branch campuses who were academically underprepared for college level study and who also lacked basic library skills. Eleven students were taught in the lecture group, and eight students in the CAI group. The CAI group used four floppy disks and an instruction manual which covered the card catalog, periodical indexes, newspaper indexes, and government publications indexes. In addition, the CAI group completed an attitude survey to measure the effectiveness of CAI as a teaching method. No significant differences were found between the previous library skills of the lecture group and the CAI group, but the CAI group had both a significantly higher level of performance on a mastery test given after the completion of the instruction, and highly positive attitudes toward CAI as an instructional method. It is suggested that CAI should be considered for implementation when developing and/or revising library instruction programs even though other methods may be preferable in certain situations. The text is supplemented by four tables and five bibliographic references/notes. A list of 13 references and a 13-item bibliography are also provided. (EW)