If you are using the correlation coefficient to describe the strength of linear association between X and Y in your sample, you must assume that the scores in the population from which the data were sampled are distributed as a bivariate normal distribution.

The idea that some associations are learned more easily than others is called

a. receptivity. b. preparedness. c. associative learning. d. preattentive analysis.

Gary has difficulty in both understanding and producing speech. He has difficulty in

understanding certain types of words, such as words dealing with quantities or spatial characteristics, and he has trouble understanding sentences. His difficulties understanding language make it difficult for him to express himself appropriately. He is suffering from ______. a. dyslexia b. language disorder c. speech sound disorder d. childhood onset fluency disorder