Question

Experiment 4

Dr. Brown wanted to observe the effects of music genre on surgical recovery time. Dr. Brown set up an experiment in which participants were randomly assigned to listen to one of three different genres of music (rap, metal, or country). Participants were patients who had just received liposuction; they listened to their assigned music genre for 2 hours each day until discharged from the hospital. Dr. Brown recorded the number of days the patients remained in the hospital. His results are shown below.

Using the data shown below, conduct the appropriate statistical test in SPSS to determine whether there is a statistically significant difference between any of the pairs of musical genres.

Rap	Metal	Country
4	1	2
4	1	2
3	2	3
3	1	2

1. What is the design of this experiment?

Three-way between-subjects factorial design

Three-way within-subjects factorial design

One-way between-subjects factorial design

One-way within-subjects factorial design

2. What kinds of samples are being used in this experiment?

Independent samples

Dependent samples

Matched samples

3. In the blank space in the conclusion below, write the statistical results of the experiment you analyzed above in APA style:

Based on the results of a one-way ANOVA, music genre does have an effect on number of days to recover from surgery,_________.

Answer 1

Answer:

First we make variables in SPSS for analyzing data. two variables are genre and days as below

Data Entry and Anova window

( for Anova path Analyze>Compare_means>One_way_anova)

Anova

1) One-way between-subjects factorial design

(Between-Subjects ANOVA: One of the most common forms of an ANOVA is a between-subjects ANOVA. This type of analysis is applied when examining for differences between independent groups on a continuous level variable.)

Here 3 independent groups of genre are compared

2) Independent samples ( Here 3 samples are independent )

3 Based on the results of a one-way ANOVA, music genre does have an effect on number of days to recover from surgery, there is no effect of genre.( because we have P-value is 0.001 so we accept hypothesis that there no difference in music genre)