The frequency of a sound wave determines how high or low the sound sounds, a quality known as

If successful performance on a test requires knowledge that people of a particular culture do not generally have, the test is said to be ____

a. ?culturally biased b. unreliable? c. ?inappropriate d. ?invalid

Harry loves to read and will do it on his own without his mother telling him to read. This is an example of what type of motivation?

a) extrinsic b) intrinsic c) internal d) basic