Your little sister picks up objects, feels every part of them, and then puts them in her mouth. What stage of Jean Piaget's model of cognitive development does this behavior suggest she is in?

Miroslav is training to be a telephone salesperson. Initially, his boss pays Miroslav for every phone call that he makes. Later, Miroslav only gets paid if the customer requests an information package, and eventually he will only be paid if he actually closes the sale. Based on what is known about operant conditioning, you should conclude that Miroslav's telephone sales skills are being developed

using the process known as: a. negative reinforcement b. shaping c. adventitious reinforcement d. vicarious reinforcement

Which of the following is a basic reversal design?

A. quasi-experimental design B. ABA design C. pretest-posttest design D. interrupted time series design