Homework:Week 1 - Assignment

Question 22,1.4.18

Part 2 of 2

HW Score:90%, 72 of 80 points

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An author based conclusions about the general population of all women on 4500 replies that she received after mailing100,000 questionnaires to variouswomen's groups.

Identify and explain a source of bias in this study. Then suggest how the bias might have been avoided.

Participation

Participation

bias occurs because returning the questionnaires was voluntary.

How might this bias have beenavoided? Select all that apply.

A.

The author could have mailed more questionnaires.

B.

The author could have followed up with phone calls or other mailings.

C.

The author could have hired awomen's group to conduct the survey.

D.

The author could have mailed questionnaires to men and women.

E.

The author could have interviewed a randomly selected sample of women.