According to the text, in most European countries how many adolescents attend vocational schools? Approximately

A parent of an ASD child may remember that the child was ________ as a baby

a. too easy b. very interested in cuddling c. very difficult d. greatly interested in attention and stimulation

What is a new method of for computing heritability that may replace the use of twin studies?

a. Case studies. b. Total variance statistics. c. Genome-wide association studies d. Adoption studies.