Parametric and Non Parametric Analyses
Unit 3 IP Diagrams
Part 1
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Paired Samples Statistics |
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Mean |
N |
Std. Deviation |
Std. Error Mean |
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|
Pair 1 |
average ACT score 1993 |
15.986 |
64 |
1.8401 |
.2300 |
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|
average ACT score 1994 |
15.861 |
64 |
1.8351 |
.2294 |
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Paired Samples Correlations |
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|
N |
Correlation |
Sig. |
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|
Pair 1 |
average ACT score 1993 & average ACT score 1994 |
64 |
.972 |
.000 |
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Paired Samples Test |
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Paired Differences |
t |
df |
Sig. (2-tailed) |
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Mean |
Std. Deviation |
Std. Error Mean |
95% Confidence Interval of the Difference |
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|
Lower |
Upper |
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|
|
|
Pair 1 |
average ACT score 1993 - average ACT score 1994 |
.1250 |
.4342 |
.0543 |
.0165 |
.2335 |
2.303 |
63 |
.025 |
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Paired Samples Effect Sizes |
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Standardizera |
Point Estimate |
95% Confidence Interval |
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Lower |
Upper |
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Pair 1 |
average ACT score 1993 - average ACT score 1994 |
Cohen's d |
.4342 |
.288 |
.037 |
.537 |
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|
Hedges' correction |
.4369 |
.286 |
.036 |
.534 |
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a. The denominator used in estimating the effect sizes. Cohen's d uses the sample standard deviation of the mean difference. Hedges' correction uses the sample standard deviation of the mean difference, plus a correction factor. |
Part 2
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Group Statistics |
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Status at Ten Years |
N |
Mean |
Std. Deviation |
Std. Error Mean |
|
Serum Cholesterol 58 -- Mg per DL |
Alive |
179 |
264.87 |
52.981 |
3.960 |
|
|
Dead |
61 |
261.80 |
51.807 |
6.633 |
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Independent Samples Test |
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Independent Samples Effect Sizes |
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Standardizera |
Point Estimate |
95% Confidence Interval |
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|
|
Lower |
Upper |
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|
Serum Cholesterol 58 -- Mg per DL |
Cohen's d |
52.687 |
.058 |
-.233 |
.349 |
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Hedges' correction |
52.854 |
.058 |
-.232 |
.348 |
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|
Glass's delta |
51.807 |
.059 |
-.232 |
.350 |
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a. The denominator used in estimating the effect sizes. Cohen's d uses the pooled standard deviation. Hedges' correction uses the pooled standard deviation, plus a correction factor. Glass's delta uses the sample standard deviation of the control group. |
Part 3
|
ANOVA |
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Respondent's income; ranges recoded to midpoints |
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Sum of Squares |
df |
Mean Square |
F |
Sig. |
|
Between Groups |
69070941438.459 |
2 |
34535470719.230 |
68.102 |
.000 |
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Within Groups |
463504108043.547 |
914 |
507116091.951 |
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Total |
532575049482.007 |
916 |
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POST HOC Test
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Multiple Comparisons |
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Dependent Variable: Respondent's income; ranges recoded to midpoints |
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Bonferroni |
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(I) Degree |
(J) Degree |
Mean Difference (I-J) |
Std. Error |
Sig. |
95% Confidence Interval |
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|
Lower Bound |
Upper Bound |
|
Less than high school |
High school |
-9006.727* |
2397.441 |
.001 |
-14756.74 |
-3256.72 |
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|
Junior college or more |
-24252.154* |
2474.337 |
.000 |
-30186.59 |
-18317.72 |
|
High school |
Less than high school |
9006.727* |
2397.441 |
.001 |
3256.72 |
14756.74 |
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|
Junior college or more |
-15245.427* |
1601.619 |
.000 |
-19086.74 |
-11404.11 |
|
Junior college or more |
Less than high school |
24252.154* |
2474.337 |
.000 |
18317.72 |
30186.59 |
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High school |
15245.427* |
1601.619 |
.000 |
11404.11 |
19086.74 |
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*. The mean difference is significant at the 0.05 level. |