APSY 3-5

# APSY 3-5 - APSY 3/5/08 t-test State your hypotheses Collect...

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APSY 3/5/08 t-test - State your hypotheses - Collect your data and compute your sample stats - Decide whether to reject the null hypothesis o Set alpha level o Determine critical value o Compare your sample test stat (was Z now t) to critical value - Describe in words the nature of the results - What is t-test for dependent means? o Compares the difference between two sets of scores from the same people to see if they are significantly different. o Use a t-test for dependent means when: The independent variable is within subjects (repeated measures) Independent variable has two levels. - We are still following the steps for hypothesis testing with minor mods: o Is there a relationship between the IV and DV? That is, can we reject the null hypothesis that there is no difference between pairs of scores? o What is the nature of the relationship? That is, describe in words which set of scores is higher (or lower) than the other (looking at the means of both groups). -

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## This note was uploaded on 04/08/2008 for the course APSY 210 taught by Professor Pipitone during the Spring '08 term at SUNY Albany.

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APSY 3-5 - APSY 3/5/08 t-test State your hypotheses Collect...

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