Accepting the null hypothesis when it should have been rejected is an example of alpha a Type I error a Type II error statistical power Question 14 The lower the variability in the data, the the effect size. more variable bigger smaller Which of the following statistics is useful as a significance test for examining tables of counts? F r x 2 t Question 12 0.5 pts The overall effect that an individual factor has on the dependent variable is also referred to as a(n) main effect interaction effect simple effect experimental effect.