PSY 550

In order to support the hypothesis that the independent variable has influenced the dependent variable, __________ is necessary. Question options: a significantly high within-groups variation careful reduction of all variation a significantly high between-groups variation a sample size of at least 30 Question 2 0 / 2.5 points If error variance were to occur in an experiment: Question options: the mean of the groups would be increased. the mean of the groups would be decreased. par...