The psychologist at Stanford University who conducted the famous simulated prison experiment that demonstrated the powerful effects of social roles was

Day care is detrimental to a child when the mother is ______ and the baby is in day care for more than _____ hours a week

Fill in the blank with correct word

Addictive drugs, such as heroin, that dull the senses and induce feelings of euphoria, well-being, and relaxation are ______

a. barbiturates c. anti-psychotic drugs b. opiates d. hallucinogens