Massive interconnections in the brain allow children to master the ability to read.

Dr. Hauser hypothesized that depression is related to stress, such that people who are more depressed are also more stressed. Which of the following correlations between depression and stress would best confirm her hypothesis?

a) 0 b) .55 c) .80 d) -.99

Who is acting as a confederate?

a. Hannah, who thinks she has guessed what the "real" purpose of the study is and tells everyone else b. Aisha, who signs up for every research study she can c. Jay, who pretends to be a research participant even though he is actually working with the experimenter d. Mikael, a research participant who decides on his own to mess with other participants