PES 672
Computer Exercise #7
Factorial ANOVA
Name ______________________________________________________
Background:
So in 2000 a study was published addressing the emotional reactions to infidelity. That study found that in general, that men trend towards becoming homicidal and suicidal, while women trend towards feelings of being insecure and undesirable. Suppose we conducted a somewhat cruel study as a follow-up to this study. Suppose, just suppose, we got 24 males and 24 females to participate in this study. We got their partners to tell them they had just slept with someone else. For therapy, we then took each victim to a shooting range, gave them (under supervision) a gun and 100 bullets. For half of the men and women, they had a target of a human figure with their own face on the target. For the other half of men and women, we had a target of a human figure with a face of their partner on the target. They were left alone with each target for 5 minutes. The number of bullets used was measured. The hypothetical data are listed below.
MALES
FEMALES
Partner’s Face
Their Own Face
Partner’s Face
Their Own Face
69
33
70
97
76
26
74
80
70
10
64
88
76
51
43
100
72
34
51
100
65
28
93
58
82
27
48
95
71
9
51
83
71
33
74
97
75
11
73
89
52
14
41
69
34
46
84
82
1. What statistical test should be conducted? Why?
A 2×2 factorial ANOVA would be used because there are two independent variable each with two levels each.
2. What would the main effects be?
The main effects are each independent variable plus the effect of the interactions.
3. Explain what it would mean if there was an interaction effect.
An interaction effect shows that there is statistical significance to show that the independent variables are somehow affected by one another.
Making Predictions: Before examining the data, predict the results you will obtain.
4. Predict if there will be a main effect. If you think there will be,…