The fact that eight-month-old Robin recognizes that the sentence, "There is a bird in the tree" has seven distinct words indicates that she understands

If two probabilities are independent, their joint probability is the product of their marginal probabilities.

a. true b. false

Frequently occurring nightmares of one a week or more are associated with

a. the occurrence of night terrors. b. children and adolescents. c. adults who are middle-aged or older. d. higher levels of psychological distress.