A person who experiences a mild form of depression lasting for a period of at least two years is likely to suffer from:

For thousands of years, humankind believed that the world was flat. Then some intrepid explorers demonstrated that the world is round, causing a monumental change in human thinking that opened new possibilities. Piaget would say that this change is an example of

a. assimilation. b. acclamation. c. accommodation. d. attribution.

In the sign test, if H0 is false, then Preal _________

a. equals 0.05 c. equals 1 - 0.05 b. equals 0.50 d. does not equal 0.50