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Explain how the paired-samples t test evaluates individual differences and the independent-
samples t test evaluates group differences.
Solution
Use a paired samples t-test when you're testing the same people twice, such as
when you give the same person a pre-test (Time 1), then a post-test (Time 2), and you compare
his/her scores at two different times (to see if there's a significant difference between the scores
at Time 1 vs. the scores at Time 2). Use an independent samples t-test when you're testing
different people's scores (such as men vs. women) to see if there's a significant difference
between their scores. It doesn't have to do with whether the sampling is random. I hope that
helps!

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Explain how the paired-samples t test evaluates individual differenc.pdf

  • 1. Explain how the paired-samples t test evaluates individual differences and the independent- samples t test evaluates group differences. Solution Use a paired samples t-test when you're testing the same people twice, such as when you give the same person a pre-test (Time 1), then a post-test (Time 2), and you compare his/her scores at two different times (to see if there's a significant difference between the scores at Time 1 vs. the scores at Time 2). Use an independent samples t-test when you're testing different people's scores (such as men vs. women) to see if there's a significant difference between their scores. It doesn't have to do with whether the sampling is random. I hope that helps!