Who was the leader in describing the interaction between culture and education?

Research on ADHD __________________________

a. has found similar treatments utilized across the various countries that have been studied b. has found that less than half of children diagnosed with this disorder in the United States receive medication c. has shown that like the American studies, studies in other countries found higher rates among boys than among girls d. has shown that two of the most common side effects of medication are weight gain and stuttering

Something that complicates genetic studies is that genes have different effects in different environments, such as the different outcomes for children with PKU with and without exposure to phenylalanine in the diet. This complication is referred to as

a. a genetic disorder. b. a gene–environment interaction. c. gene-environment variation. d. variable phenotypes.