Animals who learned to press a bar in a Skinner box showed NO signs of learning if the food reward followed a bar press by more than seconds

Consumption of calcium by children is lower than it was 20 years ago because

milk and milk products are viewed as fattening. the rising cost of milk prompts other alternatives. there is an increased interest in soy as a substitute. children are drinking less milk.

The case of learning in the absence of reinforcement is demonstrated by studies of

A) latent learning. B) generalization. C) spontaneous recovery. D) extinction.