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The t-test in IBM SPSS Statistics
www.discoveringstatistics.comThe t-test in IBM SPSS Statistics An Example: are invisible people mischievous? In my SPSS book (Field, 2013) I imagine a future in which we have some cloaks of invisibility to ... tests the hypothesis that the variances in the two groups are equal. Therefore, if Levene’s test is ... SPSS produces the exact significance value of t ...