Describes a study to determine (1) if introductory biology students (N=417) could master ecological concepts and improve their attitudes toward their immediate surroundings using a new unit, and (2) the best instructional format, with lecture materials brought inside or individualized instruction in the field via an audio-tutorial format.…

A one-year instructional development project in Human Growth and Development was implemented in three stages at Western Illinois University. Intervention in the experimental groups consisted of developing and implementing instructional objectives packages, self-paced learning modules, and production of instructional materials. Changes in student…