auda wrote:
>
> Hi, all,
> We are testing a group of subjects on their performance in two different
> conditions (say, A and B), and we are testing them individually. We have an
> alternative hypothesis that reaction time in condition A should be longer
> than in condition B, so we perform a one-tailed t test. However, for some
> subjects, they showed the pattern reverse to our alternative hypothesis--RT
> B> RT A, and the p value is significant under one tailed test.
>
> Could we claimed that these "reversed" subjects showed "significant" results
> in the opposite direction, or we should treat them as non-significant
> results?
>
Don't do one-tailed tests.
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