If practice of experimental tasks leads to an increase in performance by participants, ____ are said to have occurred

Who is most likely to be impacted by divorce?

A. Karrie, who is not very emotional B. Don, who tends to interpret events negatively C. Joseph, who is 44 years old D. Sara, who is 18 years old

According to Piaget, a landmark of formal operational thought is the teenager's ability to __________

a) solve conservation and class-inclusion problems. b) think concretely about tangible aspects of their environment. c) apply logical processes in concrete situations. d) think hypothetically.