When predictors are ______, then very small changes in the predictors can yield radically different coefficients in the regression equations.

Kenneth is a six-year-old boy interested in climbing trees and collecting insects. Which of the following children would be considered his peer?

A) James Albert, his uncle, who tops trees for a lumber company B) Brandon, his four-year-old brother, who is fascinated by bugs C) Rebecca, a six-year-old classmate, who is afraid of heights and bugs D) Betty Lou, a nine-year-old, who won an award for her butterfly collection

Some chronic marijuana users report developing sensitization, which is defined as_________________

a. developing skin rashes and mouth sores with long-term use b. becoming less sensitive to the drug's effects with repeated use c. becoming more sensitive to the drug's effects with repeated use d. a withdrawal symptom similar to what is experienced with alcohol withdrawal