Eliminating self-harming behaviors is the top priority in the treatment of borderline personality disorder

One of the problems with measuring metabolites from blood or urine is that

a) the presence of a given metabolite tends to be overestimated. b) this type of measuring does not reflect levels of neurotransmitters in the brain. c) the presence of a given metabolite tends to be underestimated. d) blood and urine samples are not always easy to collect.

Which of the following predicts the level of a child's language development at ages 2 and 3?

a. The child's age at jumping b. The quality of social games as an infant c. Conversations between mother and daycare teacher d. When the child began to babble