BIOL 155

reject Ho, but should have accepted it. incorrect rejection of Ho

3 tests: 1) main effect of IV1 on DV, 2) main effect of IV2 on DV, 3) interaction between IV1 and IV2

extension of paired t-test to 3 or more measurements of a sample compares the 3 or more means. 1 categorical IV w 3+ levels tested in the same sample numeric DV

compare means, effects

association, relationship

dependence, prediction

tests for. a relationship between 2 numeric variables, X & Y interchangeable. measured in the same individuals

correlation means that the variables are directly proportionally related or inversely proportionally related.

numeric DV (y) on numeric IV (x). Test for dependence of y on x, if regression is statistically significant the regression equation can be used for prediction of y based on x. IV = predictor= x, DV = response variable = y