The concept of a Performance Scale
a. was introduced by Wechsler in 1939.
b. was introduced prior to the development of the Wechsler-Bellevue.
c. was found to be more applicable to adults than to children.
d. was found to be more applicable to children than to adults.
Question 2
Measures of test-retest reliability are sometimes considered inappropriate for the evaluation of health status because
a. health status tests should not given at multiple points in time.
b. variations in health status may be related to true changes over time rather than measurement error.
c. there is no domain of health status.
d. health status is too complicated to measure.
