Question & Answer
Question
I would like some information on the origins and limits of use of the "Equal Variances Not Assumed" test that is produced when one runs the Independent Samples T-test in SPSS Statistics. For some of my analyses, the two groups are extremely different in size. In some of these analyses, the very small groupmay have a variance of 0, whereas the larger group does have variance. Do such extreme differences in group size and invariance invalidate the "Equal Variance Not Assumed" t-test results?
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40423
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Modified date:
16 April 2020
UID
swg21497421