The dependent samples t-test is used to compare the sample means from two related groups. This means that the scores for both groups being compared come from the same people. The purpose of this test is to determine if there is a change from one measurement (group) to the other.
Null: The mean difference between the two groups is not different from 0.
Alternative: The mean difference between the two groups is different from 0.
When reporting the results of the dependent-samples t-test, APA Style has very specific requirements on what information should be included. Below is the key information required for reporting the results of the. You want to replace the red text with the appropriate values from your output.
t(degrees of freedom) = the t statistic, p = p value.
A dependent-samples t-test was run to determine if long-term recall improved with the introduction of the Say it Again memorization technique. The results showed that the average number of words recalled without this technique (M = 13.5, SD = 2.4) was significantly less than the average number of words recalled with this technique (M = 16.2, SD = 2.7), (t(52) = 4.8, p < .001).