T-test
- Created by: kaytlhone101
- Created on: 03-05-18 21:08
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- T-test
- Types of t-tests
- Within-subjects
- Used when all participants are tested in both conditions
- Between-subjects
- Used when participants are tested in only one of the two conditions
- Within-subjects
- homogeneity of Variance
- The distributions need to have similar variances
- Homogeneity = same
- Heterogeneity of variance is a violation of this assumption
- Levene’s test
- Between-subjects t-test only
- Levene’s test
- Between-subjects t-test only
- IF Levene’s is non-significant THEN read the top row on SPSS
- IF Levene’s is significant THEN read the bottom row on SPSS
- t statistic is a ratio that tells us about our sources of variance
- Types of t-tests
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