A psychological test that measures what we intend it to measure is said to be

A psychologist is evaluating a child by first trying to determine if the child loses his temper, if he argues with adults, and if he is often spiteful and vindictive. To which disorder does the focus of the psychologist's evaluations lead?

a. conduct disorder b. Tourette's syndrome c. oppositional defiant disorder d. attention-deficit/hyperactivity disorder

Müller's __________ is the foundation of brain mapping research

Fill in the blanks with correct word