Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Purpose
At the request of the Dean of Students Office (DOSO), the Office of Institutional
Research (OIR) conducted an analysis of graduation data of Rensselaer’s Greek student
population. OIR addressed several research questions:
•
•
•
•
•
•
What is the graduation rate for Greek students at Rensselaer after four, five, and
six years for the fall 1999 freshman cohort and for the fall 2000 freshman cohort?
How does this graduation rate compare to that of non-Greek students?
What are the descriptive cumulative GPA statistics associated with the graduating
Rensselaer Greek student population (i.e., mean GPA, median GPA, etc)?
How do these data compare with data for the graduating Rensselaer non-Greek
student population?
Is there a gender difference across these data for both Greek and non-Greek
students?
Is the difference between each of these groups statistically significant?
Methodology
To accomplish this analysis, OIR extracted data from the Institute’s Banner system
regarding the following characteristics:
•
•
•
•
Fall 1999 freshman cohort; data were extracted and analyzed for students from
this cohort who graduated after six years (n=1,076), as of August 31, 2005.
Fall 2000 freshman cohort; data were extracted and analyzed for students from
this cohort who graduated after five years (n=1,059), as of August 31, 2005.
Each group was identified as being Greek or non-Greek by a file provided by the
Registrar which identified each student from the cohort along with their respective
Greek affiliation.
The cumulative GPA of each cohort was divided into groups: Greek/non-Greek;
male Greek/male non-Greek; and female Greek/female non-Greek.
Synopsis of Findings
•
•
•
•
•
The graduation rate for Rensselaer Greek students is higher than the rate for
Rensselaer non-Greek students at each measurement point, four, five, and six
years, for both the 1999 and the 2000 cohort.
The cumulative GPA for Rensselaer Greek graduates is consistently lower than the
rate for Rensselaer non-Greek graduates for both the 1999 and the 2000 cohorts
and for both men and women Greek and non-Greek students.
The difference in graduating students’ average GPA for Greek and non-Greek
students for both 1999 and 2000 is statistically significant.
The charts on page two summarize data graphically for the first two bullets above.
The remaining charts throughout this IR Brief provide a detailed description of
data for both 1999 and 2000, for men and women, and for Greek and non-Greek.
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Graduation Rate Fall 1999 Freshman Cohort
100%
80%
60%
40%
20%
78% 68%
88% 77%
89% 78%
Four Years
Five Years
Six Years
0%
Greek
Non-Greek
Graduation Rate Fall 2000 Freshman Cohort
100%
80%
60%
40%
79%
89%
70%
20%
78%
0%
Four Years
Five Years
Greek
Non-Greek
Cumulative GPA Fall 1999 Freshman Cohort
3.50
Mean and Median for Greek and Non-Greek Students
3.40
3.30
3.20
3.10
3.16
3.33
3.28
3.17
3.00
Mean
Median
Greek
Non-Greek
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Cohort Survival and Graduation Rate Details – Freshman Fall 1999 and 2000
1
As of Fall Term
Cohort – Fall 1999
1999
2000
2001
2002
2003
2004
2005
Number of students enrolled
1,323
1,219
1,142
1,088
336
83
43
Number of Greeks enrolled
398
388
370
363
107
20
35
Number of non-Greeks enrolled
925
831
772
725
229
63
8
Percent still enrolled
92%
86%
82%
25%
6%
3%
Percent still enrolled – Greek
97%
93%
91%
27%
5%
9%
Percent still enrolled – non-Greek
90%
83%
78%
25%
7%
1%
Number graduating
1
59
883
122
11
Number of Greeks graduating
0
16
296
40
2
Number of non-Greeks graduating
1
43
587
82
10
Cumulative Graduates
1
60
943
1,065
1,076
Cumulative Graduates – Greek
0
16
312
352
354
Cumulative Graduates – non-Greek
1
44
631
713
722
5%
71%
80%
81%
Grad rate 3, 4, 5, 6 years
Grad rate 3, 4, 5, 6 years-Greek
4%
78%
88%
89%
Grad rate 3, 4, 5, 6 years-non-Greek
5%
68%
77%
78%
1
As of Fall Term
Cohort – Fall 2000
2000
2001
2002
2003
2004
2005
Number of students enrolled
1,304
1,184
1,131
1,088
296
63
Number of Greeks enrolled
373
362
349
340
112
23
Number of non-Greeks enrolled
931
822
782
748
184
40
Percent still enrolled
91%
87%
83%
23%
5%
Percent still enrolled – Greek
97%
94%
91%
30%
6%
Percent still enrolled – non-Greek
88%
84%
80%
20%
4%
Number graduating
3
75
872
109
Number of Greeks graduating
0
14
280
37
Number of non-Greeks graduating
3
61
592
72
Cumulative Graduates
3
78
950
1,059
Cumulative Graduates – Greek
0
14
294
331
Cumulative Graduates – non-Greek
3
64
656
728
6%
73%
81%
Grad rate 3, 4, 5 years-Greek
4%
79%
89%
Grad rate 3, 4, 5 years-non-Greek
7%
70%
78%
Grad rate 3, 4, 5 years
1
Enrollment figures are current as of each fall term listed. Graduation data are current as of August 31 for each year listed.
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Fall 1999 freshman cohort graduating after six years
Greek / non-Greek Cumulative GPA Analysis
Cumul at i v e GPA St at i st i cs, Fal l 1 9 9 9 Fr eshman Cohor t
A nderson-Darling Normality Test
2.1
2.4
2.7
3.0
3.3
3.6
A -Squared
P-V alue <
4.75
0.005
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.2448
0.4574
0.2092
-0.368235
-0.519668
1076
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
3.9
1.9308
2.9476
3.2692
3.6000
4.0000
95% Confidence I nterv al for Mean
3.2175
3.2722
95% Confidence I nterv al for Median
3.2339
3.3116
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.4389
0.4776
Mean
Median
3.22
3.24
3.26
3.28
3.30
3.32
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Cumul at i ve GPA St at i st i cs, Fal l 1 9 9 9 Fr eshman Cohor t , Gr eek
A nderson-Darling Normality Test
2.1
2.4
2.7
3.0
3.3
3.6
A -Squared
P-V alue
0.79
0.039
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.1640
0.4363
0.1903
-0.216990
-0.517405
354
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
3.9
1.9675
2.8638
3.1673
3.5010
4.0000
95% Confidence I nterv al for Mean
3.1184
3.2096
95% Confidence I nterv al for Median
3.1120
3.2177
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.4063
0.4710
Mean
Median
3.10
3.12
3.14
3.16
3.18
3.20
3.22
Cumul at i ve GPA St at i st i cs, Fal l 1 9 9 9 Fr eshman Cohor t , Non-Gr eek
A nderson-Darling Normality Test
2.1
2.4
2.7
3.0
3.3
3.6
3.9
A -Squared
P-V alue <
4.69
0.005
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.2845
0.4626
0.2140
-0.469267
-0.444642
722
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
1.9308
2.9766
3.3270
3.6301
4.0000
95% Confidence I nterv al for Mean
3.2507
3.3183
95% Confidence I nterv al for Median
3.2792
3.3763
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.4399
0.4878
Mean
Median
3.250
3.275
3.300
3.325
3.350
3.375
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Two sample t-test for Greek and non-Greek, p-value=0.000
Conclusion: Greek and non-Greek GPA mean significant difference
I ndi v i dual Val ue Pl ot of Fal l 1 9 9 9 Fr eshman Cohor t Gr eek and Non-Gr eek
4.0
Dat a
3.5
3.0
2.5
2.0
Greek OVERALL_LGPA_GPA
No-Greek OVERALL_LGPA_GPA
Summary statistics Greek and non-Greek
Fall 1999 cohort – cumulative GPA upon graduation
Measurement
Mean
Median
25th Percentile
75th Percentile
Skewness2
*p<.001 (two sample t-test)
All
3.24
3.27
2.95
3.60
-0.37
Greek
3.16*
3.17
2.86
3.50
-0.22
Non-Greek
3.28*
3.33
2.98
3.63
-0.47
2
The skewness for a normal distribution is zero, and any symmetric data should have a skewness near zero.
Negative values for skewness indicate data that are skewed left and positive values for skewness indicate
data that are skewed right. By skewed left, the left tail is long relative to the right tail; similarly, skewed
right means that the right tail is long relative to the left tail. In our data, non-Greek students’ skewness is
more negative than the Greek students and, therefore, the distribution is skewed left. Distributions for both
groups are on the following page.
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Cumul at i v e GPA St at i st i cs, Fal l 1 9 9 9 Fr eshman Cohor t , Gr eek Femal e
A nderson-Darling Normality Test
2.4
2.8
3.2
3.6
4.0
A -Squared
P-V alue
0.43
0.296
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.2141
0.3706
0.1374
-0.456100
-0.261293
57
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
2.2030
2.9805
3.2239
3.4805
3.9084
95% Confidence I nterv al for Mean
3.1157
3.3124
95% Confidence I nterv al for Median
3.1135
3.3993
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.3129
0.4546
Mean
Median
3.10
3.15
3.20
3.25
3.30
3.35
3.40
Cumul at i ve GPA St at i st i cs, Fal l 1 9 9 9 Fr eshman Cohor t Non-Gr eek Femal e
A nderson-Darling Normality Test
2.4
2.7
3.0
3.3
3.6
3.9
A -Squared
P-V alue
0.84
0.030
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.3295
0.3886
0.1510
-0.446924
-0.018963
199
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
2.1626
3.0579
3.3101
3.6154
4.0000
95% Confidence I nterv al for Mean
3.2752
3.3838
95% Confidence I nterv al for Median
3.2588
3.4096
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.3538
0.4311
Mean
Median
3.250
3.275
3.300
3.325
3.350
3.375
3.400
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Two sample t-test for Greek female and non-Greek female, p-value =0.043
Conclusion: Greek female and non-Greek female GPA mean significant
difference
I ndiv idual Value Plot of Fall 1999 Fr eshman Non- Gr eek Female and Gr eek Female
4.0
Dat a
3.5
3.0
2.5
2.0
No-Greek FemaleOVERALL_LGPA_GPA
Greek Female OVERALL_LGPA_GPA
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Cumul at i ve GPA St at i st i cs, Fal l 1 9 9 9 Fr eshman Cohor t , Gr eek Mal e
A nderson-Darling Normality Test
2.1
2.4
2.7
3.0
3.3
3.6
A -Squared
P-V alue
0.68
0.073
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.1544
0.4477
0.2004
-0.171411
-0.567041
297
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
3.9
1.9675
2.8456
3.1417
3.5138
4.0000
95% Confidence I nterv al for Mean
3.1033
3.2055
95% Confidence I nterv al for Median
3.0771
3.2050
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.4143
0.4869
Mean
Median
3.08
3.10
3.12
3.14
3.16
3.18
3.20
Cumul at i v e GPA St at i st i cs, Fal l 1 9 9 9 Fr eshman Cohor t Non-Gr eek Mal e
A nderson-Darling Normality Test
2.1
2.4
2.7
3.0
3.3
3.6
A -Squared
P-V alue <
4.19
0.005
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.2673
0.4870
0.2372
-0.431899
-0.628017
523
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
3.9
1.9308
2.9241
3.3333
3.6429
4.0000
95% Confidence I nterv al for Mean
3.2255
3.3092
95% Confidence I nterv al for Median
3.2663
3.3874
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.4592
0.5185
Mean
Median
3.25
3.30
3.35
3.40
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Two sample t-test for Greek male and non-Greek male, p-value =0.001
Conclusion: Greek male and non-Greek male GPA mean significant difference
I ndiv idual Value Plot of Fall 1999 Fr eshman Non- Gr eek Male and Gr eek Male
4.0
Dat a
3.5
3.0
2.5
2.0
No-Greek Male OVERALL_LGPA_GPA
Greek Male OVERALL_LGPA_GPA
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Two sample t-test for Greek female and Greek male, p-value =0.285
Conclusion: Greek female and Greek male GPA mean no significant difference
I ndiv idual Value Plot of Fall 1999 Fr eshman Cohor t Gr eek Male and Gr eek Female
4.0
Dat a
3.5
3.0
2.5
2.0
Greek Male OVERALL_LGPA_GPA
Greek Female OVERALL_LGPA_GPA
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Two sample t-test for non-Greek female and non-Greek male, p-value =0.075
Conclusion: non-Greek female and non-Greek male GPA mean no significant
difference
I ndiv idual Value Plot of Fall 1999 Fr eshman Non- Gr eek Male and Non- Gr eek Female
4.0
Dat a
3.5
3.0
2.5
2.0
No-Greek Male OVERALL_LGPA_GPA
No-Greek FemaleOVERALL_LGPA_GPA
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Fall 2000 freshman cohort graduating after five years
Greek / non-Greek Cumulative GPA Analysis
Cumul at i v e GPA St at i st i cs, Fal l 2 0 0 0 Fr eshman Cohor t
A nderson-Darling Normality Test
2.1
2.4
2.7
3.0
3.3
3.6
3.9
A -Squared
P-V alue <
5.88
0.005
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.2578
0.4627
0.2141
-0.363311
-0.607473
1059
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
1.8968
2.9394
3.2891
3.6281
4.0000
95% Confidence I nterv al for Mean
3.2299
3.2857
95% Confidence I nterv al for Median
3.2578
3.3203
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.4438
0.4833
Mean
Median
3.22
3.24
3.26
3.28
3.30
3.32
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Cumul at i v e GPA St at i st i cs, Fal l 2 0 0 0 Fr eshman Cohor t Gr eek
A nderson-Darling Normality Test
2.1
2.4
2.7
3.0
3.3
3.6
A -Squared
P-V alue
0.89
0.023
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.1685
0.4487
0.2013
-0.248232
-0.526344
331
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
3.9
1.8968
2.8537
3.1774
3.5354
4.0000
95% Confidence I nterv al for Mean
3.1200
3.2170
95% Confidence I nterv al for Median
3.1307
3.2539
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.4169
0.4857
Mean
Median
3.100
3.125
3.150
3.175
3.200
3.225
3.250
Cumul at i v e GPA St at i st i cs, Fal l 2 0 0 0 Fr eshman Cohor t Non-Gr eek
A nderson-Darling Normality Test
2.1
2.4
2.7
3.0
3.3
3.6
A -Squared
P-V alue <
5.67
0.005
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.2984
0.4636
0.2149
-0.438895
-0.588802
728
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
3.9
1.9701
2.9832
3.3430
3.6796
4.0000
95% Confidence I nterv al for Mean
3.2647
3.3322
95% Confidence I nterv al for Median
3.2908
3.3877
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.4410
0.4887
Mean
Median
3.250
3.275
3.300
3.325
3.350
3.375
3.400
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Two sample t-test for Greek and non-Greek, p-value =0.000
Conclusion: Greek and non-Greek GPA mean significant difference
I ndi v i dual Val ue Pl ot of Fal l 2 0 0 0 Fr eshman Cohor t Non-Gr eek and Gr eek
4.0
Dat a
3.5
3.0
2.5
2.0
No-Greek OVERALL_LGPA_GPA
Greek OVERALL_LGPA_GPA
Summary statistics Greek and non-Greek
Fall 2000 cohort – cumulative GPA upon graduation
Measurement
Mean
Median
25th Percentile
75th Percentile
Skewness
*p<.001 (two sample t-test)
All
3.26
3.29
2.94
3.63
-0.36
Greek
3.17*
3.18
2.85
3.54
-0.25
Non-Greek
3.30*
3.34
2.98
3.68
-0.44
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Cumul at i v e GPA St at i st i cs, Fal l 2 0 0 0 Fr eshman Cohor t ,Gr eek Femal e
A nderson-Darling Normality Test
2.4
2.8
3.2
3.6
A -Squared
P-V alue
0.36
0.427
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.2541
0.3898
0.1520
-0.463569
-0.367791
48
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
4.0
2.3590
2.9885
3.3165
3.5257
3.9048
95% Confidence I nterv al for Mean
3.1409
3.3673
95% Confidence I nterv al for Median
3.1272
3.4478
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.3245
0.4883
Mean
Median
3.15
3.20
3.25
3.30
3.35
3.40
3.45
Cumul at i ve GPA St at i st i cs, Fal l 2 0 0 0 Fr eshman Cohor t Non-Gr eek Femal e
A nderson-Darling Normality Test
2.1
2.4
2.7
3.0
3.3
3.6
A -Squared
P-V alue <
2.17
0.005
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.3110
0.4464
0.1993
-0.541546
-0.403574
238
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
3.9
2.1280
3.0227
3.3577
3.6820
4.0000
95% Confidence I nterv al for Mean
3.2539
3.3680
95% Confidence I nterv al for Median
3.2824
3.4286
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.4096
0.4906
Mean
Median
3.25
3.30
3.35
3.40
3.45
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Two sample t-test for Greek female and non-Greek female, p-value =0.372
Conclusion: Greek female and non-Greek female GPA mean no significant
difference
I ndiv idual Value Plot of Fall 2000 Fr eshman Cohor t Gr eek Female, Non- Gr eek Female
4.0
Dat a
3.5
3.0
2.5
2.0
Greek Female OVERALL_LGPA_GPA
No-Greek FemaleOVERALL_LGPA_GPA
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Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Cumul at i ve GPA St at i st i cs, Fal l 2 0 0 0 Fr eshman Cohor t ,Gr eek Mal e
A nderson-Darling Normality Test
2.1
2.4
2.7
3.0
3.3
3.6
A -Squared
P-V alue
0.75
0.051
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.1539
0.4569
0.2088
-0.202752
-0.551189
283
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
3.9
1.8968
2.8235
3.1681
3.5462
4.0000
95% Confidence I nterv al for Mean
3.1005
3.2074
95% Confidence I nterv al for Median
3.0908
3.2359
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.4221
0.4980
Mean
Median
3.100
3.125
3.150
3.175
3.200
3.225
3.250
Cumul at i v e GPA St at i st i cs, Fal l 2 0 0 0 Fr eshman Cohor t Non-Gr eek Mal e
A nderson-Darling Normality Test
2.1
2.4
2.7
3.0
3.3
3.6
A -Squared
P-V alue <
3.82
0.005
Mean
StDev
V ariance
Skew ness
Kurtosis
N
3.2924
0.4721
0.2228
-0.393729
-0.660741
490
Minimum
1st Q uartile
Median
3rd Q uartile
Maximum
3.9
1.9701
2.9644
3.3357
3.6789
4.0000
95% Confidence I nterv al for Mean
3.2505
3.3343
95% Confidence I nterv al for Median
3.2725
3.3942
95% Confidence I nterv al for StDev
9 5 % Co n f i d e n ce I n t e r v a l s
0.4442
0.5036
Mean
Median
3.250
3.275
3.300
3.325
3.350
3.375
3.400
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
Page 18
Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Two sample t-test for Greek male and non-Greek male, p-value =0.000
Conclusion: Greek male and non-Greek male GPA mean significant difference
I ndiv idual Value Plot of Fall 2000 Fr eshman Cohor t Gr eek Male, Non- Gr eek Male
4.0
Dat a
3.5
3.0
2.5
2.0
Greek Male OVERALL_LGPA_GPA
No-Greek Male OVERALL_LGPA_GPA
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
Page 19
Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Two sample t-test for Greek female and Greek male, p-value =0.114
Conclusion: Greek female and Greek male GPA mean no significant difference
I ndiv idual Value Plot of Fall 2000 Fr eshman Cohor t Gr eek Female and Gr eek Male
4.0
Dat a
3.5
3.0
2.5
2.0
Greek Female OVERALL_LGPA_GPA
Greek Male OVERALL_LGPA_GPA
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
Page 20
Institutional Research Brief – Greek Graduation Rate and GPA Analysis
Two sample t-test for non-Greek female and non-Greek male, p-value =0.605
Conclusion: non-Greek female and non-Greek male GPA mean no significant
difference
I ndiv idual Value Plot of Fall 2000 Fr eshman Cohor t Non- Gr eek Female, Non- Gr eek Male
4.0
Dat a
3.5
3.0
2.5
2.0
No-Greek FemaleOVERALL_LGPA_GPA
No-Greek Male OVERALL_LGPA_GPA
Institutional Research Brief - Greek Graduation Rate and GPA Analysis.doc
Page 21