Answer the following questions in your own words:
To test the reliability of the HESI Exam before administration, a Kuder Richardson Formula 20 was used. This formula can only be applied to dichotomously scored data, meaning the response to an item or task is always scored as either correct or incorrect. Test for validity is an ongoing process. Content validity refers to the test items' effectiveness in measuring students' basic nursing knowledge and skills.
Descriptives
Descriptive Statistics |
|||||
|
N |
Minimum |
Maximum |
Mean |
Std. Deviation |
Version 1 HESI |
35 |
58.22 |
99.42 |
79.1243 |
10.83923 |
At Least 75% of HESI Packet Completed |
33 |
.00 |
1.00 |
.3636 |
.48850 |
Version 2 HESI |
35 |
55.43 |
94.12 |
78.4066 |
11.06854 |
Gender |
35 |
1.00 |
2.00 |
1.9143 |
.28403 |
Valid N (listwise) |
33 |
|
|
|
|
The mean for remediation completion was .36 and the standard deviation was .49. After completing the remediation, the mean for the final exam hesi score was 78.0 with a standard deviation of 11.2.
T value is -40.764 and df is 32.
T-Test
Paired Samples Statistics |
|||||
|
Mean |
N |
Std. Deviation |
Std. Error Mean |
|
Pair 1 |
At Least 75% of HESI Packet Completed |
.3636 |
33 |
.48850 |
.08504 |
Version 2 HESI |
78.0088 |
33 |
11.15226 |
1.94136 |
Paired Samples Correlations |
|||||
|
N |
Correlation |
Significance |
||
One-Sided p |
Two-Sided p |
||||
Pair 1 |
At Least 75% of HESI Packet Completed & Version 2 HESI |
33 |
.448 |
.004 |
.009 |
Paired Samples Test |
|||||||||||
|
Paired Differences |
t |
df |
Significance |
|
||||||
Mean |
Std. Deviation |
Std. Error Mean |
95% Confidence Interval of the Difference |
One-Sided p |
Two-Sided p |
|
|||||
Lower |
Upper |
|
|||||||||
Pair 1 |
At Least 75% of HESI Packet Completed - Version 2 HESI |
-77.64515 |
10.94192 |
1.90474 |
-81.52499 |
-73.76531 |
-40.764 |
32 |
<.001 |
<.001 |
|
Paired Samples Effect Sizes |
||||||
|
Standardizera |
Point Estimate |
95% Confidence Interval |
|||
Lower |
Upper |
|||||
Pair 1 |
At Least 75% of HESI Packet Completed - Version 2 HESI |
Cohen's d |
10.94192 |
-7.096 |
-8.855 |
-5.329 |
Hedges' correction |
11.20700 |
-6.928 |
-8.646 |
-5.203 |
||
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. |
T-Test
Paired Samples Statistics |
|||||
|
Mean |
N |
Std. Deviation |
Std. Error Mean |
|
Pair 1 |
Version 1 HESI |
79.1243 |
35 |
10.83923 |
1.83216 |
Version 2 HESI |
78.4066 |
35 |
11.06854 |
1.87093 |
Paired Samples Correlations |
|||||
|
N |
Correlation |
Significance |
||
One-Sided p |
Two-Sided p |
||||
Pair 1 |
Version 1 HESI & Version 2 HESI |
35 |
.380 |
.012 |
.024 |
Paired Samples Test |
||||||||||
|
Paired Differences |
t |
df |
Significance |
||||||
Mean |
Std. Deviation |
Std. Error Mean |
95% Confidence Interval of the Difference |
One-Sided p |
Two-Sided p |
|||||
Lower |
Upper |
|||||||||
Pair 1 |
Version 1 HESI - Version 2 HESI |
.71771 |
12.19945 |
2.06208 |
-3.47294 |
4.90837 |
.348 |
34 |
.365 |
.730 |
Paired Samples Effect Sizes |
||||||
|
Standardizera |
Point Estimate |
95% Confidence Interval |
|||
Lower |
Upper |
|||||
Pair 1 |
Version 1 HESI - Version 2 HESI |
Cohen's d |
12.19945 |
.059 |
-.273 |
.390 |
Hedges' correction |
12.47706 |
.058 |
-.267 |
.381 |
||
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. |
Explore
Case Processing Summary |
||||||
|
Cases |
|||||
Valid |
Missing |
Total |
||||
N |
Percent |
N |
Percent |
N |
Percent |
|
Version 1 HESI |
35 |
100.0% |
0 |
0.0% |
35 |
100.0% |
Version 2 HESI |
35 |
100.0% |
0 |
0.0% |
35 |
100.0% |
Version 1 HESI
Version 1 HESI Stem-and-Leaf Plot
Frequency Stem & Leaf
1.00 5 . 8
3.00 6 . 344
5.00 6 . 56888
3.00 7 . 133
7.00 7 . 5677889
6.00 8 . 001122
3.00 8 . 799
4.00 9 . 1122
3.00 9 . 789
Stem width: 10.00
Each leaf: 1 case(s)
Version 2 HESI
Version 2 HESI Stem-and-Leaf Plot
Frequency Stem & Leaf
3.00 5 . 589
3.00 6 . 033
2.00 6 . 58
3.00 7 . 333
7.00 7 . 5567889
6.00 8 . 002233
4.00 8 . 5569
7.00 9 . 0012334
Stem width: 10.00
Each leaf: 1 case(s)
T-Test
Group Statistics |
|||||
|
Gender |
N |
Mean |
Std. Deviation |
Std. Error Mean |
Version 2 HESI |
Male |
3 |
83.7133 |
4.97826 |
2.87420 |
Female |
32 |
77.9091 |
11.39250 |
2.01393 |
Independent Samples Test |
|||||||||||
|
Levene's Test for Equality of Variances |
t-test for Equality of Means |
|||||||||
F |
Sig. |
t |
df |
Significance |
Mean Difference |
Std. Error Difference |
95% Confidence Interval of the Difference |
||||
One-Sided p |
Two-Sided p |
Lower |
Upper |
||||||||
Version 2 HESI |
Equal variances assumed |
2.188 |
.149 |
.865 |
33 |
.197 |
.393 |
5.80427 |
6.70811 |
-7.84348 |
19.45202 |
Equal variances not assumed |
|
|
1.654 |
4.378 |
.084 |
.167 |
5.80427 |
3.50955 |
-3.61688 |
15.22542 |
Independent Samples Effect Sizes |
|||||
|
Standardizera |
Point Estimate |
95% Confidence Interval |
||
Lower |
Upper |
||||
Version 2 HESI |
Cohen's d |
11.10968 |
.522 |
-.672 |
1.709 |
Hedges' correction |
11.37041 |
.510 |
-.656 |
1.669 |
|
Glass's delta |
11.39250 |
.509 |
-.685 |
1.696 |
|
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 (i.e., the second) group. |
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