b79ce3e4_arning___five_practical_guides__Some_possible_disadvantages
[Assessment option] Group Average Mark Individual submissions (allocated task or individual reports as described below) are marked individually. The group members each then receive an average of these marks. [Some possible advantages] may provide motivation for students to focus on both individual and group work and thereby develop in both areas [Some possible disadvantages] 
may be perceived as unfair by students stronger students may be unfairly disadvantaged by weaker ones and vice versa
Assessing Student Learning - five practical guides
Some possible disadvantages