When taking tests such as the Scholastic Assessment Tests or the Graduate Record Examinations, the test administrator reads the test instructions to the examinees. This procedure helps to ensure

A researcher may choose experimentation over other research methods because

A) every experiment has a hypothesis. B) psychologists can alter independent variables to study different effects. C) experiments provide concrete evidence. D) experimentation gives the investigator control over outside variables that may influence the results.

A regular program of exercise, to be an effective metabolism raiser, needs to burn off about ______ calories during each session

a. 50 to 100 c. 400 to 600 b. 200 to 300 d. 700 to 1,000