Whenever Roger says "please," his father gives Roger what he asks for. This in turn increases Roger's use of the word "please.". Giving in to Roger's requests appears to be a form of

a. reinforcement

Which of the following statements about anoxia is true?

A) After initial brain injury from anoxia, another phase of cell death can occur several weeks later. B) Whole-body cooling involves immersing an anoxic newborn in freezing water. C) The effects of mild or even moderate anoxia rarely persist beyond infancy. D) When development is severely impaired, the anoxia was probably extreme.

Which of the recurring existentialist themes was highly developed by Sartre, but can also be found in the works of Blaise Pascal?

A) Existence trumps essence B) The void of nothingness C) Absurdity abounds D) Alienation and estrangement