Question: i need help understanding the output below. I believe a t-test would be the correct statistical test, but then I saw equal variances assumed and
i need help understanding the output below. I believe a t-test would be the correct statistical test, but then I saw equal variances assumed and I don't really understand that.
outcome looks like this:
t-test groups=Group(1,2)
/MISSING=ANALYSIS
/VARIABLES=ADS
/CRITERIA=CI(.95)
Group Statistics
Group N Mean Std Dev. Std. Error Mean
ADS face-to-face 20 9.2500 3.14350 .70291
video 20 9.0000 2.97357 .66491
Independent samples test
Levene's test for Equality of Variances
f sig t df sig. (2-tailed) mean diff. std. error diff 95% confid interval of the diff
lower upper
ads equal variances assumed .108 .744 .258 38 .798 .25000 .96757 -1.70874 2.20874
equal variances not assumed .258 37.883 .798 .25000 .96757 -1.70893 2.20893
40 participants
2-grp design w/ one population sample
same counseling model between groups
1- face2face and other video confcng
null hypothesis states no diff between scores for face2face and video confcng
Face-to-Face Counseling Video Conference Counseling
5 10
8 7
14 5
12 6
10 13
9 12
5 9
11 7
8 4
7 8
13 13
4 14
7 9
11 7
15 5
13 9
9 10
10 13
8 11
6 8
The output from the analysis is below. The results are t(38) = 0.258, p = .798.
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