Jill Thinks That Mixed-Sex Groups (Ones with Both Males and Females)make

Multiple Choice

Jill thinks that mixed-sex groups (ones with both males and females) make better decisions than same-sex groups.Therefore,she creates ten mixed-sex groups and ten same-sex groups,and asks them to answer a series of math problems.In this study,the independent variable is

A) the composition of the group (same-sex or mixed-sex) .
B) the quality of the group's decision.
C) the size of the groups.
D) the gender of the group members.
E) held constant.