Professor Pompous talks to children about how they solve puzzles. The course of questioning is modified, depending on the child's earlier answers. Pompous's approach resembles Piaget's ____ method

Alcohol dependence is generally more common among people of ______ income

levels and ______ education levels. a. lower, lower c. higher, lower b. lower, higher d. higher, higher

Suppose that we find a regression relating X to Y by the following equation: Y´ = 12 + .80X. If we observe an X score of 2, what score on Y would we expect?

a. 8 b. 10.4 c. 13.6 d. 16.4