Question

1. I am interested in the relationship between personality and music preference. Specifically, I am curious as to whether or not people with different music presences vary in the personality trait conscientiousness. Conscientiousness is the personality trait of being careful and vigilant. People high in conscientiousness are thoughtful, structured, organized, and not at all spontaneous. Students in an Intro Psych class indicated their music genre they preferred most (Country, Pop, Rock, or Classical) and completed a single conscientiousness item. The data is presented below. Each score represents each class member’s level of conscientiousness. Higher scores indicate greater conscientiousness.

Group 1: Rock	Group 2: Pop	Group 3: Country	Group 4: Classical
6	5	3	8
6	6	5	9
4	6	4	7
6	6	5	6
7	5	4	2
5	6	4	9
7		2	6
8		3	7
			8

1. Carry out a one-way between subjects ANOVA to test the effects of these variables in this experiment. Create and record your calculations in the ANOVA table. (6 points)

2. From these analyses, what do we know about the effects of type of music people listen to on their conscientiousness? Be sure to include a discussion of the critical value in your answer (1.5 points)

Answer 1

(a)

Source	SS	df	MS	F	p-value
Treatment	44.50	3	14.833	7.08	.0012
Error	56.60	27	2.096
Total	101.10	30

(b) The hypothesis being tested is:

H0: µ1 = µ2 = µ3 = µ4

Ha: At least one means is not equal

The p-value is 0.0012.

Since the p-value (0.0012) is less than the significance level (0.05), we can reject the null hypothesis.

Therefore, we can conclude that there is effects of type of music people listen to on their conscientiousness.