Mental age divided by chronological age and multiplied by 100 is the formula used to calculate a person's

When drawing conclusions about behavior, psychologists rely on

a. their own personal beliefs. b. what is known as "common sense." c. objectively collected information. d. their everyday observations of people.

When traits allow researchers to connect and unify sets of stimuli and responses that might seem at first glance unrelated, the traits are functioning as

a. critical variables. b. scientific predisposers. c. idiographic variables. d. intervening variables.