Paired sample t-tests

IB Psychology: Paired sample t-tests

When writing the IA, nothing seems to worry students (and teachers) more than the application of inferential statistics. And yet - it is actually not as difficult as it may seem.The paired sample t-test is used when we have a repeated measures design. The t-test is used with larger sample sizes. Using the t-test with smaller sample sizes may lead to a Type I error - that is, the rejection of a true null hypothesis....

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