Question

Preliminary information suggests that the effect of (face-to-face) counseling is larger for migraine sufferers who are women than men. Knowing this, the scientist would probably use a: A) completely randomized design. B) block design, with counseling and no counseling as the blocks. C) block design, with women and men as the blocks. D) stratified random sample.

Answer 1

C) Block design, with women and men as the blocks.

Step-by-step explanation:

By doing this block design, dividing the men's group and women's group, it would help identify if the preliminary information was accurate.

Block desing's objetive is to manage a source of variability that is not of prior intrest to the research.