Wavelengths of light in the 500–570 nm range (just below the middle of the visible spectrum) would typically correspond with a report of seeing ___

Dr. Zemple wants to see if a manual dexterity test predicts performance. He administers his test to his employees and correlates their scores to their most recent performance review scores. Dr. Zemple is examining:

A) cross-sectional validity. B) concurrent validity. C) predictive validity. D) immediate validity.

Andy measured the size of each of his friends‘ heads and also asked them for their SAT scores in order to determine whether a relationship existed between head size and intelligence. His computed correlation coefficient was .00 . What should Andy conclude?

a. As head size increases, intelligence increases. b. As head size increases, intelligence decreases. c. There is no relationship between head size and intelligence. d. A small head causes a lowered level of intelligence.