Question

Renee (a 24-year-old Master's student) was studying attitudes toward women using a questionnaire about affirmative action for women. She hypothesized that male participants would express more support for affirmative action for women when they expressed their attitudes toward a female experimenter, compared to a male experimenter. Renee randomly assigned a group of male college students to have their questionnaire administered by her or by her male advisor, a 50-year-old professor of psychology. She conducted the study in two identical classrooms at the same time of day. Renee found that the men tested in her own room reported more support for affirmative action for women, compared to the men tested by her advisor. She concluded that the gender of the examiner can make men express more liberal gender attitudes,

what is the design of renees study?

a. posttest only

b. one group

c. pretest posttest

d. within groups

what is the main threat to internal validity?

a. order effects

b. constancy

c. a counfounding variable

d. a selection threat

how could renee redesign her study to prevent the threat to internal validity from the previous question?

a. counterbalance the order

b. use elimination

c. use constancy

d. use random assignment

Answer 1

1. one group is the design of renees study.

2. a selection threat is the main threat to internal validity.

3. counterbalance the order to prevent the threat to internal validity.