Many over-the-counter remedies have names that resemble the actual chemical or physiological mechanism that they impact. Which of the following product names would be most likely to triggers feelings of sleepiness?

In the double-blind procedure, some subjects receive an active drug while others receive a neutral, inactive substance called a ______

a. perceptive blind c. control device b. placebo d. Hawthorne implant

Once formed, identity

A) continues to be refined in adulthood as people reevaluate earlier commitments and choices. B) remains stable throughout the lifespan. C) tends to be rigid, which can drastically limit adolescents' choices. D) prevents people from questioning their values and priorities.