Exam 9: Multi-Group Design: Im Feeling Hot, but Is the Earth Hot, Too

Researchers decide to use self-report, teacher report, and parent report data, as well as sociometric data from peers. These researchers are employing _____ to help answer the desired research question.

In a 2008 study examining the cognitive benefits of interacting with nature researchers found:

In a 2010 study investigating whether darkness increases dishonesty and self-interested behaviors it was suggested that:

Warren randomly assigned 60 participants to describe a positive childhood memory, a negative childhood memory, or a neutral childhood memory and then complete a mood questionnaire. Warrens wants to compare the "neutral condition" with the other two conditions. Which statistic is appropriate to use?

Dr. Schubert noted the following results: F(2, 94) = .72, p = .02, eta² = .30. Which of the following numbers represents the effect size in this results write-up?

Dr. Primrose is studying sleep disturbances among young adults and conducts experiments at different times during the night for each patient and monitors their sleep patterns at different points in their sleep cycles. Without realizing it Dr. Primrose has introduced:

Dr. Nixon noted the following results: $\chi$ ²(6, N= 422) = 10.72, p = .001, ᶲ = .20. Which of the following numbers represents the degrees of freedom in this results write-up?

Describe a multigroup design that would examine cultural differences in dating practices.

The results of a one-way ANOVA suggest that the participants' fear response was differentially effected depending on their respective condition: spiders (M = 44; SD = 4.20), snakes (M = 62; SD = 7.1), and dogs (M = 21; SD = 2.20). There was a significant difference F (2, 92) = .67, p = .03. Based on this information what was the standard deviation for the spider fear condition?

Use the following to answer questions Scenario I Scenario I is based on fabricated data inspired by the following study: Warner, C. B. & Jackson, J. D. (2009). A time course examination of the preview effect: older adults need a longer preview than younger adults. Experimental Aging Research, 35, 327-347. Preview Time and Aging The purpose of this experiment was to determine the minimum preview time required for adults to make a fast perceptual decision. Young adults and older adults were presented visual stimuli for 357, 414, 471, 529 or 586 milliseconds (ms). Knowing that older adults are more sensitive to cool temperatures, the researchers increased the temperature of the room to 75 degrees for the older adults (the temperature of the room for younger adults was 68 degrees) at the request of the IRB. The visual stimulus was presented on a computer monitor and contained several letter Ls rotated at various degrees. After the preview stimulus the participants were shown the test stimulus. This contained the Ls in the preview, as well as several additional Ls and one letter T. The participants were instructed to locate the "T" and were given 5.5 seconds to do so. This procedure was repeated several times such that each participant received 360 trials. The results indicated that younger adults located the T more quickly than the older adults regardless of preview time. Among the younger adults, preview time significantly affected their ability to locate the T. Specifically, they were more quickly able to identify the T when the preview time was 414 ms or 586 ms. The results indicate that preview time significantly affects perceptual discrimination and are illustrated in Figure 1. Figure 1. Participants responded significantly faster to visual stimuli when they were given 529 ms or 589 ms to preview the stimuli. -(Scenario I) In order to determine which preview times affected response speed, the researchers in Scenario I would have had to conduct a(n):

In an experiment, the group in which participants believe they are getting the treatment, but in fact are not receiving any type of treatment or manipulation is referred to as the:

If you have a multigroup design with 12 groups, roughly what is the minimum number of participants you should have for reasonable power in your study?

Tarzanna is writing a research report and has to discuss disadvantages of self-report measures. Which of the following would be correct for Tarzanna to note?

A higher standard deviation in one group compared with others suggests that participants in that group endorsed _____ of responses.

Dr. Wadsworth used census data to estimate the number of individuals who would meet criteria for participation in his study examining single-parent families receiving federal assistance with a mother currently seeking higher education and two-parent households receiving federal assistance with either parent currently seeking higher education. Dr. Wadsworth expects 54 males and 72 females in his single-parent family group and 32 males and 44 females in his two-parent family group. Dr. Wadsworth wants to make sure the distribution is not significant different among the groups. Dr. Wadsworth needs to conduct a(n):

Dr. Herrin was lecturing to his students about random assignment and noted that random assignment is integral to reduce _____ before a study begins.

The results of a one-way ANOVA suggest that the participants' fear response was differentially effected depending on their respective condition: spiders (M = 44; SD = 4.20), snakes (M = 62; SD = 7.1), and dogs (M = 21; SD = 2.20). There was a significant difference F (2, 92) = .67, p = .03. Based on this information what was the within-subjects degrees of freedom?

Which of the following is a results write-up for an ANOVA?

Use the following to answer questions Scenario I Scenario I is based on fabricated data inspired by the following study: Warner, C. B. & Jackson, J. D. (2009). A time course examination of the preview effect: older adults need a longer preview than younger adults. Experimental Aging Research, 35, 327-347. Preview Time and Aging The purpose of this experiment was to determine the minimum preview time required for adults to make a fast perceptual decision. Young adults and older adults were presented visual stimuli for 357, 414, 471, 529 or 586 milliseconds (ms). Knowing that older adults are more sensitive to cool temperatures, the researchers increased the temperature of the room to 75 degrees for the older adults (the temperature of the room for younger adults was 68 degrees) at the request of the IRB. The visual stimulus was presented on a computer monitor and contained several letter Ls rotated at various degrees. After the preview stimulus the participants were shown the test stimulus. This contained the Ls in the preview, as well as several additional Ls and one letter T. The participants were instructed to locate the "T" and were given 5.5 seconds to do so. This procedure was repeated several times such that each participant received 360 trials. The results indicated that younger adults located the T more quickly than the older adults regardless of preview time. Among the younger adults, preview time significantly affected their ability to locate the T. Specifically, they were more quickly able to identify the T when the preview time was 414 ms or 586 ms. The results indicate that preview time significantly affects perceptual discrimination and are illustrated in Figure 1. Figure 1. Participants responded significantly faster to visual stimuli when they were given 529 ms or 589 ms to preview the stimuli. -(Scenario I) If there are 100 older adults and 100 younger adults in the study described in Scenario I, and adults in each age group are equally distributed across the five preview conditions, then there are _____ participants in each preview condition.

The association between the perception of global warming and hot or cold temperatures in a room was found to have a _____ relationship.