Question

Use SPSS^® to check your mock data for the following:

• Assumptions of normality (Shapiro-Wilk)
• Homogeneity of variance (Lavene)
• Outliers
• Skewness/Kurtosis

sex	film	arousal
1	1	47
1	1	38
1	1	41
1	1	35
1	1	43
1	1	49
1	1	38
1	1	39
1	1	44
1	1	48
1	2	25
1	2	8
1	2	4
1	2	16
1	2	15
1	2	6
1	2	20
1	2	12
1	2	9
1	2	23
2	1	23
2	1	35
2	1	25
2	1	36
2	1	33
2	1	40
2	1	31
2	1	39
2	1	35
2	1	27
2	2	18
2	2	13
2	2	19
2	2	24
2	2	11
2	2	2
2	2	9
2	2	19
2	2	10
2	2	2

Answer 1

• Assumptions of normality (Shapiro-Wilk)

The SPSS output is:

The assumptions of normality are met for arousal.

• Homogeneity of variance (Lavene)

The SPSS output is:

The Homogeneity of variance can be assumed for this data.

• Outliers

The SPSS output is:

There are no outliers in the data.

• Skewness/Kurtosis

The data for sex is negatively skewed and positively skewed for film.

Kurtosis is the same for both factors.