Describe Br. Britt's seven step hypothesis testing procedure for judging whether a difference between a set of means is larger enough to be statistically significant.
Step 3: Specify the test statistic (z,t,F,f,X2) and find the critical value in a table
Step 3: Specify the test statistic (z,t,f,X2) and find the critical value in a table
- draw out tree diagram or use words
- If you have more than one IV, use a two factor ANOVA (F test). With one IV you must determine the number of levels of that IV. IF there is only a single level (one sample), then use a one sample z test (if the population variance O2 is known) or a one sample t test (if pop variance is NOT known). If you have two levels (2 samples) then determine if they are independent (i.e. between subjects)-independent t test or dependent (within subjects, matched, correlated, pre-post test) dependent t test. Finally if you pne IV and have 3 or more levels, use a one way or one factor ANOVA (f test)