The evolution and later reliance on our ___ system has been suggested as the reason why humans are not as sensitive to pheromones as other mammals

What are the effects of television viewing on children?

a. It clearly has positive effects on impulse control. b. It causes children to be more restless. c. It stifles the imagination. d. It depends upon what shows are being watched.

A clinician claims that the effectiveness of a new treatment varies depending on the gender of the client. Specifically, the new treatment has been shown to be very effective for females, but the treatment has little or no effect for males. In this example, ____

a. there is an interaction between the treatment and client's gender b. there is no interaction between the treatment and client's gender c. there is no main effect of treatment d. there is no main effect of gender