Dr. rounder wants to test the effects of social setting on studying. she asks 20 students to take exams after studying in each of three locations: a quiet library, their home while listening to music, and a noisy cafeteria. all students study and test in each location. in order to analyze her data, dr. rounder would use:
a. independent-samples t test. b. between-subjects anova. c. paired-samples t test. d. repeated-measures anova.

D. repeated-measures ANOVA.

Explanation:

Repeated-measures ANOVA is used for studies that investigate either changes in mean scores over three or more time points or change in mean scores under three or more conditions.

In the case above Dr. Rounder wants to test the effects of social setting on studying under three different conditions; a quiet library, their home while listening to music, and a noisy cafeteria. For each person the measurement were derived under each of the conditions which makes it a repeated-measures ANOVA.

i’m   sure probably just geuss and see which one you can get right, i’m pretty sure it is the combination of goods and services