The authors describe a collaborative group-testing strategy implemented and studied in undergraduate science classes. This project investigated how the assessment strategy relates to student performance and perceptions about collaboration and focused on two sections of an undergraduate biotechnology course taught in separate semesters.

Describes a strategy to incorporate the theme of cooperative learning into the format of graded examinations. (JRH)

Criticizes the Mitchell and Lawson (1988) report from the viewpoint of individual interview method. Provides Lawson's reply to the comment by showing differences in research philosophy and methods. (YP)

Describes development and validation of a 24-item test which assesses student performance on a set of 12 objectives related to planning and constructing an investigation. In addition to sound psychometric properties, the test is distinctive because it includes a set of interrelated cumulative objectives which reflect autonomous problem solving.…