SOLVED

8-21) Robert is conducting a within-subjects design and he wants to make use of overall counterbalancing. He constructs a matrix of all possible treatment conditions where each condition appears in every ordinal position equally often. He then assigns each participant to receive one sequence from the matrix. What research design is Robert using? a. Double-blind placebo b. Complete counterbalancing c. Yoked control group d. Latin square 8-22) Imagine that you are conducting a within-subjects design that includes four different treatment conditions, A-B-C-D, and you deliver the conditions to the participants by using the following sequences: A-B-C-D, B-A-D-C, C-D-A-B, and D-C-B-A. What type of a systematic, counterbalanced design are you using? a. Randomized blocks factorial b. Double-blind placebo c. Latin square d. Case study 8-23) If researchers wish to make use of equivalent subjects at each level of an independent variable, then they will most likely use a __________ research design. a. between-subjects b. within-subjects c. nonequivalent groups d. confounded 8-24) Typically, __________ research designs require fewer subjects relative to __________ designs. a. between-subjects; within-subjects b. within-subjects; between-subjects c. between-subjects; repeated measures d. within-subjects; repeated measures 8-25) Typically, __________ research designs are more convenient and efficient relative to __________ designs. a. between-subjects; within-subjects b. within-subjects; between-subjects c. between-subjects; repeated measures d. within-subjects; repeated measures 8-26) Typically, __________ research designs have higher statistical power relative to __________ designs. a. between-subjects; within-subjects b. within-subjects; between-subjects c. between-subjects; repeated measures d. within-subjects; repeated measures 8-27) If we determine that a particular design is more sensitive in detecting small differences in the variance produced from the independent variable, we say that the test has a. more subjects. b. more confounds. c. more reliability. d. more statistical power. 8-28) Using within-subjects research designs typically results in __________ relative to between-subjects designs. a. lower error variance b. higher cost c. lower efficiency d. lower statistical power 8-29) If researchers are carrying out longitudinal studies, their hypotheses often require the use of __________ designs. a. between-subject b. within-subject c. repeated measures d. both b and c 8-30) Repeated measures designs are often preferable to using between-subjects designs because they a. guarantee equivalence of subjects. b. require fewer subjects. c. are more convenient and efficient. d. all of the above