If you read an article comparing the value of breastfeeding versus formula feeding on the physical growth of infants, the psychologist who wrote this article is probably a psychologist

Ancient Greek philosophers ____

a. were exclusively monists b. provided natural explanations for their observations c. were exclusively dualists d. relied on the supernatural to explain their observations

Nicole's parents are trying to decrease the number of phone calls that she makes in a day. If Nicole makes fewer than 5 calls in a day, she is allowed to have a friend over the next day. In which DRL variation is the reinforcer delivered if the number of responses that occur in a period of time is less than a specified level

a. full-session DRL b. spaced-responding DRL c. whole-interval DRL d. response DRL