A key factor in the effects preschools have on children’s social and intellectual development is their level of __________

Having children tends to __________ marital satisfaction, and ___________ marital stability

A) increase; decrease B) decrease; increase C) increase; increase D) decrease; decrease

Which was not initially a neutral stimulus in Pavlov's experiment?

(a) the food bowl (b) Pavlov himself (c) the meat powder (d) the tuning fork