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Assignment 6
You are being asked to compare Adult Attachment Style (EV-Dismissive and Preoccupied) with Self-Esteem (RV). Questions 1 – 5
1. State the null and alternative hypotheses.
a. Ho: µ1 = µ2, Ha: µ1 ≠ µ2
b. Ho: µ1 – µ2 = 0, Ha: µ1 – µ2 ≠ 0
c. Ho: µ1 – µ2 ≠ 0, Ha: µ1 – µ2 = 0
d. Ho: µ1 ≠ µ2, Ha: µ1 = µ2
e. Both ‘a’ and ‘b’
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Assignment 6
2. Were any of the assumptions and conditions violated?
a.
b.
c.
d.
e.
Yes, the assumption of normality
Yes, the assumption of equal variances
Both ‘a’ and ‘b’
No, assumptions were met
Not enough information
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Assignment 6
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Assignment 6
Group Statistics
First Adult Attachment Style
(a “1” is put next to the
description)
N
Mean
Std. Deviation
Std. Error Mean
Rosenburg Self Esteem
Dismissing Avoidant
97
21.96
5.967
.606
Score
Preoccupied
42
19.76
6.048
.933
Independent Samples Test
Levene’s Test for Equality of
Variances
t-test for Equality of Means
95% Confidence Interval of the
F
Rosenburg Self Esteem Equal variances
Score
assumed
Sig.
.114
Equal variances not
assumed
t
df
.736 1.985
Sig. (2-
Mean
Std. Error
tailed)
Difference
Difference
Difference
Lower
Upper
137
.049
2.197
1.107
.009
4.385
1.975 77.001
.052
2.197
1.113
-.019
4.412
3. What is the appropriate t-statistic and p-value?
a. t(77) = 1.98, p = .052
b. t(137) = 1.99, p = .049
c. t(77) = 1.99, p = .049
d. t(137) = 1.98, p = .052
e. Both ‘a’ and ‘b’
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Assignment 6
4. What is your decision?
a. Reject Ho, Dismissive scored higher than Preoccupied
b. Reject Ho, Preoccupied scored higher than Dismissive
c. Fail to reject Ho, Dismissive scored higher than Preoccupied
d. Fail to reject Ho, Preoccupied scored higher than Dismissive
e. None of the above
5. Is Cohen’s d appropriate? If so compute it?
a. It isn’t appropriate
b. No, d = .37, small to medium effect
c. Yes, d = .37, large effect
d. Yes, d = .37, small to medium effect
e. Yes, d = -.37, large effect
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Assignment 6
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Assignment 6
You are being asked to compare Adult Attachment Style (EV-Dismissive and Fearful) with Self-Esteem (RV). Questions 6 – 10
6. State the null and alternative hypotheses.
a. Ho: µ1 = µ2, Ha: µ1 ≠ µ2
b. Ho: µ1 – µ2 = 0, Ha: µ1 – µ2 ≠ 0
c. Ho: µ1 – µ2 ≠ 0, Ha: µ1 – µ2 = 0
d. Ho: µ1 ≠ µ2, Ha: µ1 = µ2
e. Both ‘a’ and ‘b’
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Assignment 6
7. Were any of the assumptions and conditions violated?
a. Yes, the assumption of normality
b. Yes, the assumption of equal variances
c. Both ‘a’ and ‘b’
d. No, assumptions were met
e. Not enough information
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Assignment 6
Group Statistics
First Adult Attachment Style
(a “1” is put next to the
description)
N
Rosenburg Self Esteem
Dismissing Avoidant
Score
Fearful Avoidant
Mean
Std. Deviation
Std. Error Mean
97
21.96
5.967
.606
106
19.88
4.822
.468
Independent Samples Test
Levene’s Test for Equality of
Variances
t-test for Equality of Means
95% Confidence Interval of the
F
Rosenburg Self
Equal variances
Esteem Score
assumed
Sig.
2.973
Equal variances not
assumed
t
df
.086 2.744
Sig. (2-
Mean
Std. Error
tailed)
Difference
Difference
Difference
Lower
Upper
201
.007
2.081
.759
.586
3.577
2.718 184.715
.007
2.081
.766
.571
3.592
8. What is the appropriate t-statistic and p-value?
a. t(201) = 2.74, p = .086
b. t(185) = 2.72, p = .086
c. t(185) = 2.72, p = .007
d. t(201) = 2.74, p = .007
e. Both ‘a’ and ‘b’
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Assignment 6
9. What is your decision?
a. Reject Ho, Fearful scored higher than Dismissive
b. Reject Ho, Dismissive scored higher than Fearful
c. Fail to reject Ho, Dismissive scored higher than Fearful
d. Fail to reject Ho, Fearful scored higher than Dismissive
e. Both ‘a’ and ‘b’
10. Is Cohen’s d appropriate? If so compute it?
a. No, d = .39, small to medium effect
b. No, d = .39, medium effect
c. Yes, d = .39, large effect
d. Yes, d = .39, small to medium effect
e. Yes, d = -.37, small effect
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Assignment 6
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Assignment 6
You are being asked to compare Adult Attachment Style (EV-Preoccupied and Secure) with Self-Esteem (RV). Questions 11 – 15
11. State the null and alternative hypotheses.
a. Ho: µ1 ≠ µ2, Ha: µ1 = µ2
b. Ho: µ1 = µ2, Ha: µ1 ≠ µ2
c. Ho: µ1 – µ2 = 0, Ha: µ1 – µ2 ≠ 0
d. Ho: µ1 – µ2 ≠ 0, Ha: µ1 – µ2 = 0
e. Both ‘b’ and ‘c’
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Assignment 6
12. Were any of the assumptions and conditions violated?
a. Yes, the assumption of normality
b. Yes, the assumption of equal variances
c. Both ‘a’ and ‘b’
d. All of the above
e. No, assumptions were met
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Assignment 6
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Assignment 6
Group Statistics
First Adult Attachment Style
(a “1” is put next to the
description)
Rosenburg Self Esteem
Preoccupied
Score
Secure
N
Mean
Std. Deviation
Std. Error Mean
42
19.76
6.048
.933
124
22.96
5.166
.464
Independent Samples Test
Levene’s Test for Equality
of Variances
t-test for Equality of Means
95% Confidence Interval of the
F
Rosenburg Self
Equal variances
Esteem Score
assumed
2.059
Equal variances not
assumed
Sig.
t
.153
df
Sig. (2-
Mean
Std. Error
tailed)
Difference
Difference
Difference
Lower
Upper
-3.317
164
.001
-3.198
.964
-5.101
-1.294
-3.068
62.499
.003
-3.198
1.042
-5.281
-1.115
13. What is the appropriate t-statistic and p-value?
a. t(62) = -3.07, p = .153
b. t(62) = -3.07, p = .003
c. t(164) = -3.07, p = .001
d. t(164) = 3.32, p = .003
e. t(164) = -3.32, p = .001
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Assignment 6
14. What is your decision?
a. Reject Ho, Preoccupied scored higher than Secure
b. Fail to reject Ho, Secure scored higher than Preoccupied
c. Fail to reject Ho, Preoccupied scored higher than Secure
d. Reject Ho, Secure scored higher than Preoccupied
e. Both ‘c’ and ‘d’
15. Is Cohen’s d and a confidence interval appropriate? If so compute it?
a. Not enough information
b. No, failed to reject Ho
c. Yes, failed to reject Ho
d. No, reject Ho
e. Yes, reject Ho
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