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PS370 Research Methods in Psychology Online Exam 7 Answers (Ashworth College)

D. less sensitive to

D. less sensitive to participant needs. Question 24 of 40 0.0/ 2.5 Points Single-subject designs are sometimes preferable to between-subjects group comparison designs because: A. independent variables cannot be manipulated in between-subjects group comparison designs. B. single-subject designs have greater external validity. C. important information about the way individuals perform is lost when summarizing group information. D. None of the above (single-subject designs are never preferable to between-subjects designs) Question 25 of 40 2.5/ 2.5 Points Why could correlated-groups designs be considered to be experiments? A. They maximize error variance. B. They always use score data. C. They randomly assign all participants to conditions. D. They meet the requirement of equivalence of groups. Question 26 of 40 2.5/ 2.5 Points A Latin square design is a more formalized design for use in: A. within-subjects experiments on eye color and visual acuity. B. between-subjects designs. C. within-subjects experiments with three or more conditions. D. within-subjects experiments with no more than three conditions. Question 27 of 40 0.0/ 2.5 Points In terms of the F-test, the value of F is increased by __________ variance. A. increasing experimental variance and/or decreasing error B. decreasing experimental variance and/or increasing error C. increasing error D. decreasing error variance and/or decreasing experimental Question 28 of 40 2.5/ 2.5 Points What is the major strength of the within-subjects design? A. More participants can be used in a single study. B. Interactive effects can be identified. C. Carry-over effects are eliminated. D. It guarantees that the participants in the various conditions are equivalent at the start of the study. Question 29 of 40 0.0/ 2.5 Points

The single-group, pretest-posttest design, although it is considered a(n) __________ design, is a(n) __________ design. A. within-subjects; non-experimental B. between-subjects; non-experimental C. within-subjects; experimental D. low-constraint; experimental Question 30 of 40 2.5/ 2.5 Points Single-subject designs are often used in research on: A. behavior modification. B. stereotyping and prejudice. C. development of teaching methods. D. the side effects of psychotropic medications. Question 31 of 40 2.5/ 2.5 Points The single-subject, randomized, time-series design is essentially an interrupted time-series design with one refinement. What is that refinement? A. The experimenter is kept blind as to the manipulation. B. The participant designs and self-administers the manipulation. C. The assignment of the manipulation in the time-series is randomized. D. The assignment of participants to conditions is randomized. Question 32 of 40 2.5/ 2.5 Points Single-subject designs are weak in __________ validity. A. external B. statistical C. internal D. construct Question 33 of 40 2.5/ 2.5 Points It is important in a matched-subjects design for researchers to assign each matched set of participants randomly to the conditions primarily because: A. all of the critical variables should have been identified by consulting published studies. B. of the requirements to keep researchers blind as to condition. C. of the requirements to keep participants blind as to condition. D. random assignment within sets can control for unidentified confounding variables. Question 34 of 40 0.0/ 2.5 Points In a study of the effectiveness of an experimental drug on sleep apnea, researchers are expecting the drug to have long-lasting beneficial effects on their participants. In this case, what type of correlated-groups design should they use? A. A within-subjects design B. A matched-subjects design