The problem of pre-test sensitization is most acute in the
a. after-only design.
b. one-group before-after design.
c. matched-subjects design.
d. cross-sectional design.
Question 2
If we examine how often people clean their homes and how content they are with their homes, the relationship might be distorted if we only include people who clean once or twice a year. This type of distortion is called _____.
a. outliers
b. restriction of range
c. curvilinear
d. linear
