Questions (for Part 1)
1. For each response variable (i.e., Attention to Detail and Social Desirability), report the number
of individuals in each group (which might differ slightly for each variable due to missing values)
along with the sample means and sample standard deviations for each group
Group Statistics
What is your sex? N Mean Std. Deviation Std. Error Mean
AQAttDet Male 107 24.86 4.475 .433
Female 223 26.35 4.371 .293
SDSTot Male 108 16.97 2.211 .213
Female 224 17.05 1.873 .125
2. For each response variable, is it safe to use the “equal variances” version of the t-test and why
or why not?
It is safe to use the equal variances version for both variables because the difference in the output
that the Levenès test shows us in the chart, is;
AQATTDet equal variances assumed is .581 compared to SDSTot which is 3.231 which is
significantly higher and because of this big difference between the data it is not ok to rely on the
'equal variances' for this portion.
3. For each response variable, report the value of the mean difference between the two groups
and its standard error (for the version of the test that is consistent with the previous part ii).
mean difference for AQATTDet is -1.494 & standard error difference is .518 (for equal
variances assumed)
.522 (for equal variances not
assumed)
mean difference for SDSTot is -.077 & standard error difference is .233 (Equal variances
assumed)
.247 (Equal variances not assumed)
