You Are Planning to Recruit Volunteers from Among the Students

Multiple Choice

You are planning to recruit volunteers from among the students at a local university. If you accept both male and female volunteers, you should be aware that

A) unequal numbers of men and women may volunteer for some kinds of research.
B) combining the results from men and women may hide important male-female differences.
C) having unequal numbers of volunteers as well as combining the results from men and women may adversely affect your results.
D) neither having unequal numbers of volunteers nor combining the results from men and women will have any significant effects on your results.