Music seems to be everywhere in society, and psychologists have investigated its effects on a variety...

Music seems to be everywhere in society, and psychologists have investigated its effects on a variety of performances. For example, suppose an experimenter created three equivalent groups of eight people each and asked each person to perform a proofreading task on a short research paper. Subjects in group A1 performed the task with no music playing in the background, subjects in group A2 performed the task with a selection of oldies playing in the background, and subjects in groups A3 performed the task while listening to hard rock. The dependent variable was the errors detected out of a possible 50. Suppose the following scores were obtained:

No Music (A1)	Oldies (A2)	Hard Rock (A3)
40	34	26
41	39	24
39	38	19
36	40	23
35	34	18
32	35	21
31	29	23
34	36	29

A. Analyze the scores with a one-factor between-subjects ANOVA to answer the question: Did the music condition affect the number of errors detected by a subject? Use α = .05. If needed, use the Tukey HSD test for multiple (pairwise) comparisons and include effect size.

B. Report the results of this experiment as it would appear in a research paper.

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orchestra answered 1 year ago

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