If the doctor wants to detect a heartbeat, he or she should wait until the

How do most researchers measure infant taste responses?

A) By rating infant facial expressions using coding systems, such as the Baby Facial Action Coding System. B) Via facial expressions, body movements, and sucking responses. C) Via pacifiers; infants do not like the sensation of droppers. D) Via maternal report of what infants like or do not like.

Based on research concerning control, personality, and stress-related illness, which person would be least likely to experience a weakened immune system?

a. Joe, who feels that his manager controls his work life b. Jennifer, who feels little involvement in or commitment to her job c. Jason, who is always optimistic and perceives that he has a lot of control d. Rochelle, who wants her job to remain the same forever