1. Rhesus monkeys kept in captivity are given a range of items in their living a
ID: 3251422 • Letter: 1
Question
1. Rhesus monkeys kept in captivity are given a range of items in their living areas for enrichment, and the managers of these captive groups conduct a variety of experiments to see what setups are most beneficial to the monkeys. In which scenario would it be appropriate to conduct analysis of variance (ANOVA)? a. Researchers collect behavioral data on monkeys and categorize them as either "high stress" or "low stress." They also have information on what their enrichment classification is in their group (food-focused, toy-focused, or structure-focused). They are interested in seeing if there is an association between the monkeys' stress category and enrichment classification. b. Researchers collect baseline levels of stress hormones from one group of monkeys with no enrichment. After this baseline measurement, researchers add a climbing toy to the living area. After one week, they collect another hormone sample from the same monkeys and want to compare the baseline levels to the post-enrichment levels. c. Researchers divide monkeys into four groups, each group with a different enrichment setup. After one week, blood samples are collected to measure stress hormone levels, and the researchers are interested in seeing if the mean stress levels differ amongst the groups. d. Researchers collect behavioral data on monkeys and categorize them as either "high stress" or "low stress." They are interested in seeing if the proportion of high stress monkeys is significantly different in a group with toy-focused enrichment compared to a group with food-focused enrichment.
Explanation / Answer
The situation in which ANOVA would be appropriate is:
Researchers divide monkeys into four groups, each group with a different enrichment setup. After one week, blood samples are collected to measure stress hormone levels, and the researchers are interested in seeing if the mean stress levels differ amongst the groups.
Option C is correct.
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