A group to which you do not identify and to which you attribute negative characteristics is known as a(n) __________ group

Nate is watching the cumulative recorder that is connected to a box where a rat is pressing a lever to receive food reinforcement. The slope of the line is becoming flatter and flatter over time. Based on this output, Nate can conclude that the rat's response rate

a. is increasing over time. b. will soon show spontaneous recovery. c. is decreasing over time. d. is caused by inadequate stimulus generalization.

Which of the following is the best way to make sure that babies get their appropriate levels of nourishment?

a. breast-feeding b. making sure that the baby eats at least once an hour during awake time c. ensuring the baby consumes 90–100 calories per pound of its weight each day d. enhancing formula with vitamin D