A test maker conducts the appropriate statistical tests to make sure that all the items on his new personality test are measuring the same basic concept. He wants to demonstrate that the test has good

During the 1950s, one U.S. government agency that conducted research with LSD was the

A. Central Intelligence Agency. B. Centers for Disease Control. C. Department of Education. D. Department of Agriculture.

In the development of writing, children learn to transfer the control from the larger muscles of the arm to the smaller muscles of the hand and fingers. This demonstrates

A) proximodistal development. B) cephalocaudal development. C) palmar development. D) locomotor development.