1) In one type of research design, which is called a _______, participants experience every condition (level of the IV). That way, each participant serves as his or her own control a. between-subjects design b. counterbalancing design c. matched-groups design d. within-subject design

2) A researcher obtains a t statistic of t = 3.00 from a within-subjects study using n = 16 participants. If the effect size is measured using r2 then the value of r2 for the study would be _____. a. r^2 = 9 / 18 = .50 b. r^2 = 9 / 15 = 3 / 5 = .60 c. r^2 = 9 / 14 = .64 d. The value of r^2 cannot be determined from the information provided e. r^2 = 9 / 24 = .375

3) In a matched-groups design, participants are matched on a. The independent variable b. The dependent variable c. A variable correlated with the IV d. A variable correlated with the DV

4) The final exam scores of 18 male medical residents were compared with those of 18 female medical residents. To compare the scores of the men to those of the women, you have to use a a. Between-subjects design b. Repeated-measures design c. Within-subjects design d. Single-subject design

5) Researchers were studying the effect of a new form of training on employee satisfaction. Satisfaction was measured before the training and again 3 months later. The mean of the difference scores was 3.258 points, and the variance of the difference scores was 6.711 points. Compute the estimated d. Report the answer to 2 decimal places, as you would in an APA-style report.

6) As described in the previous question, researchers were studying the effect of a new form of training on employee satisfaction. Satisfaction was measured before the training and again 3 months later. After finding significant results, the researchers computed r2 to determine whether the size of the effect was clinically significant. They found r2 = .4598. Please write an APA style conclusion for this result.