Assessment should encourage collaborative work, positive interdependence, and individual accountability.
Assessment can be either summative or formative.
Summative assessments usually provide information to grade students. Since very few instructors have the luxury of teaching without grades, this section is primarily devoted to summative assessment. It is in the best interests of the student to hope that other students do poorly and remain confused, and there is no incentive to collaborate. In the traditional course, grading is based on work submitted by individuals. Things are not so easy when learning groups are used.