Control or sense of control does not influence a patient's perception of a procedure

Of the following research designs, the one(s) requiring active manipulation

of the independent variable is (are) the a. between-subjects b. repeated-measures c. matched-subjects d. all of these

A construct's range of convenience is:

a. its relevance to particular situations or people. b. defined by the number of needs it satisfies. c. determined by the number of people who hold the same construct. d. applicable to normal or abnormal behavior.