Seven-year-old Frankie comes home from school at 4 p.m. and is without adult supervision until his mom arrives home from work around 5 p.m. Frankie is one of 5 million __________ children in the United States

When making diagnoses and conducting therapy, psychologists should

a. take into account their clients' personal differences regarding age, race, culture, ethnicity, gender, and sexual orientation. b. use an unstated standard for judging what is normal for each individual. c. ignore cultural differences and use one psychological perspective for viewing all clients. d. use the behavior of the middle­class American male as a standard for assessing what is "average."

Which theory of color vision explains that fatigue caused by making one response produces an afterimage of the opposite color as the system recovers?

a. three-opponent b. trichromatic c. opponent-process d. accommodation