Exam 12: Mixed Design: Which Therapy Is Best for Treating Eating Disorders

Dr. Winston referenced several notable limitations of single-subject designs. Which of the following is NOT a weakness of single-subject designs?

A 1997 study examining eating disorders and anxiety disorders found that there were:

_____ is an empty control group often used in clinical research.

Natalya conducted an intervention for social skills deficits. She included a group of participants in her study who did not receive any type of intervention at all. After her study finished, she took the best intervention option determined by the study and provided it to the control group. What type of control group did Natalya use for her study?

The NIH is taking proposals for a new research grant they are bestowing. The NIH is particularly interested in research proposals that use an A-B-A-B design. Which of the follow research designs would be most appropriate for the grant?

A(n) _____ is an experimental design that combines within-subjects and between-subjects methods of data collection.

Use the following to answer questions Scenario I Scenario I is based on fabricated data inspired by the following study: Easton, R. D., Srinivas, K. & Greene, A. J. (1997). Do vision and haptics share common representations? Implicit and explicit memory within and between modalities. Journal of Experimental Psychology, 23, 153-163. Effect of Study Modality and Test Modality on Word Recognition The purpose of this study was to examine the effect of study modality and test modality on memory. To that end, the researchers asked 102 undergraduates to study 20 words in two different modalities: visual and haptic. The researchers counterbalanced the order in which participants studied the words such that some studied the visual words first and haptic words second, and others studied the haptic words first and visual words second. After studying the 20 words the participants were tested for their memory of the words. Like the study phase, the modality of words presented in the test phase varied; one test was haptic and one test was visual. However, unlike the study phase, participants were tested either in the haptic condition or in the visual condition. During both tests the participants were presented with 30 words, 10 of which had been studied visually, 10 of which had been studied haptically, and 10 of which had not been studied previously. Memory was assessed by calculating the percent of words correctly identified. A two-way ANOVA was used to analyze the results of the study. The results revealed that words studied visually were recalled more by participants who were tested visually than those tested haptically. Recall for words studied haptically did not differ between those tested visually and those tested haptically. -(Scenario I) Suppose the participants studied the words either visually or haptically, and then were presented either visual or haptic words at test. This design would now be a:

The simple single-subject design is the:

_____ is a single-subject design in which researchers take a baseline measurement and then introduce the intervention and measure the same variable again.

A meta-analysis is a statistical strategy for comparing and integrating the results from _____ on _____.

Kavar recently participated in a marketing study, but was unaware of what group he was in. However, the marketing administrators knew that Kavar was in the brand name group rather than the generic product group. This is an example of:

The experiment-expectancy effect occurs when a bias causes a researcher to _____ the participants of an experiment.

Dr. Winston referenced several notable limitations of between-subject designs. Which of the following is NOT a weakness of between-subject designs?

Dr. Carlos specifies in his statistical methodology class that it is important to remember that when carrying out a mixed design participants receive every level of the within-subjects factor, but only one level of the:

What would be an example of a single-subject A-B design?

Dr. Soto was conducting research in a small rural community in Asia that was affected by an earthquake. Dr. Soto collected baseline measurements on posttraumatic responses and then the natural disaster assistance team arrived. Dr. Soto collected the same information again from respondents after the disaster assistance team had been stationed for one week. After two weeks the disaster assistance team left and Dr. Soto collected posttraumatic response data again. Dr. Soto expected that the posttraumatic responses would return to baseline after the disaster assistance team left. Dr. Soto is using what type of design?

Dr. Domnica conducted a mixed design ANOVA in reference to her study examining the effects of marijuana use and alcohol consumption on several prenatal domains of development. Dr. Domnica had the following outcome: F(1, 106) = 11.2, p = .04, eta² = .13. Which number represents the F score?

The use of _____ in between-subject designs increases internal validity.

A mixed design is helpful in that it allows researchers to answer _____ research questions at the same time.

An A-B-A-B design is a single-subject design in which researchers establish a baseline, introduce the intervention, remove the intervention, and then reintroduce the intervention, measuring the _____each time.