Exam 10: Within-Subjects Design: Can Watching Reality Tv Shows Be Good for Us

Which of the following best addresses the nature of a threat to internal validity that is caused by history?

A _____ is a statistic used to test a hypothesis from a within-subjects design with three or more conditions.

_____ is a list of students maintained by a psychology department who will receive credit in their psychology class if they join in an investigative study.

Greer teaches college algebra to freshmen. Based on previous experience. Greer believes that students perform better on the final exam if they are assessed on multiple different areas of algebra throughout the term rather than just cumulative exams. Greer develops a study in which no baseline measurements are taken, but rather students are assessed in a step-wise fashion on several identified areas of algebra. Greer has developed a:

Unlike pretest-posttest designs, repeated-measures designs do NOT include:

A professor is concerned about participants dropping out of his study because of fear of electric shock. He is worried about:

Kyle is examining the allergy effects of different brands of women's perfume. He has collected 40 people for each of the perfume conditions and has approximately 300 participants among the conditions. Kyle has set up his study to use a:

Dr. Yukihara conducted an attention task study on Monday, Wednesday, and Friday this week. The same participants attended each of the study workshops. During the Wednesday workshop the fire alarm was set off and all occupants had to vacate the building for 30 minutes. What should Dr. Yukihara be most concerned with?

Freda just purchased a new horse named "Lightning" to use in rodeo competition. Freda needs to gather information regarding Lightning's initial skills and speed prior to implementing training strategies. Freda is gathering information for a:

Sixth graders were a part of a study examining analytical reasoning in solving puzzles in October. They were then asked to be a part of a completely different study in March that tested their analytical skills in solving word problems. The researcher in the most recent study was very surprised at how developed their analytical skills were. It appears that exposure to the previous assessment changed the participant's reaction to the current assessment. This is most likely due to:

Repeated-measures designs, unlike pretest-posttest designs, do NOT include:

Participants reported at 6:00 AM to the research lab for extra credit participation in a research study. Participants stayed in the research lab until 10:00 PM with only two 15-minute breaks. The researchers should be most concerned with:

A Latin square design is used as what kind of strategy?

Coach Lawson instructed his runners to run the 50-yard dash at the beginning of the track season. Coach Lawson recorded this information. He then had his runners run the same distance at the end of the season. Coach Lawson then compared the two measurements to determine if training positively affected each runner's speed. Coach Lawson is utilizing which type of design?

Unlike within-subjects designs, between-subjects designs use:

Why is a repeated-measures design considered a within-subjects design?

Families signed up to have their child be a part of a new social skills group that was starting up at the local community center. These families all have a child with an autism spectrum disorder and that child has difficulty initiating and maintaining social interaction with peers. The families are told by the clinician that the program is 6 weeks long and has helped many children improve their social skills. The group meets four times a week for 2-hour sessions. After the first week some of the families did not see improvement and the families got together to discuss whether this program was worth the effort and time. What should the program developers be more concerned with?

(Scenario III) To conclude that tryptophan is significantly greater than tyrosine one-hour after eating a meal, the researchers must have performed a(n):

Cora has been struggling with the onset of early dementia. She is having a very hard time remembering her address, her grandchildren's names, and her daily routine. Cora was accepted into a clinical trial for a new drug to test its effectiveness compared with other medications on the market in slowing down the symptoms of dementia. Cora, without her knowledge, was placed in the placebo group and many of the other participants were randomly selected for placement in five different medication groups. Cora was initially assessed; she was given a sugar pill for the next 6 months with periodic neurocognitive assessments to monitor any change. Cora was part of which type of research design?

Professor Alvarado is reviewing with students for an upcoming exam. He is testing them on the advantages and disadvantages of various measurement designs. All of the following would be noted as advantages for behavioral diaries, EXCEPT: