The ability to master a certain skill is referred to as a(n) ______

A stimulus that signals whether a certain response or behavior is likely to be rewarded, ignored, or punished is called a __________

a) reinforcer. b) generalized stimulus. c) discriminative stimulus. d) primary reinforcer.

Preterm babies are considered at risk because ____________________________

a. their immune systems are immature b. they have too much surfactant in their lungs c. their bodies generate too much heat d. their gestational age is 40 weeks and that is still too early to perform basic functions, such as sucking