Chapter 12 Flashcards
Independent samples t test
Subjects recieve differnt levels of the IV and there are differnt subjects in both conditons
T test APA format
Italic t(df)=x.xx, p
Fail to reject null
Critical t>calculated t
Reject null
Calcultet t>critical t
Directional hypothesis(one tailed test)
Specify directing of the differnce there is expected to be
Nondirectional hypotheisi(two tailes test)
We are expecting there tobe a differnecr but not specefying a direction
Bonferroni adjustment
Adjusting the alpha level based on the number of t tests run
ANOVA(f ratio:)
Looking at ration between vs. within
2 sources of variance
- Between
2. within
Within groups variance
Scores may differ from each other even when participants are int he same conditon (error)
Between groups variance
Scores may differ from eachother becuse they are form differnt condions (systematic)
post hoc tests)
-follow up tests to an ANOVA run
Pared t test
-analyze true within subjects designs(same people in all conditions) or matched designs(not the same people in both conditons but share sme commonality
Within subjects ANOVA
3 or more condiotns of the same participants
Reduced power means increased risk of ____ error while too much power means increased risj of ______ error.
Type 2, type 1
