Author Question: The General Cognitive Index (GCI) is made up of a. verbal, perceptual-performance, and ... (Read 30 times)

imowrer · **on:** Jun 19, 2018

The General Cognitive Index (GCI) is made up of

a. verbal, perceptual-performance, and quantitative scales.
b. verbal, memory, and motor scales.
c. verbal, quantitative, and additional scales.
d. verbal, quantitative, and memory scales.

Question 2

Which of the following statements is true?

a. We can always demonstrate that a reliable test has meaning.
b. It is logically impossible to demonstrate that a totally unreliable test is valid.
c. A test cannot be reliable unless it is also valid.
d. Reliability and validity are basically unrelated concepts.