Parametric tests, like the independent samples t test, often have assumptions about the shapes and homogeneity of variances of the populations compared.

The central fissure divides the __________ region from the __________ region of the

cerebral cortex. a. medial; dorsal b. contralateral; anterior c. anterior; posterior d. lateral; contralateral e. left; right

Perry works at a job where he is paid by commission. For every car Perry sells, he gets 10% of the profits. Perry is being reinforced on a _______ schedule

a. fixed-ratio b. fixed-interval c. variable-ratio d. variable-interval