Unlike other disorders, the concordance rate of ADHD reveals a higher rate among fraternal twins than that of identical twins.
Answer the following statement true (T) or false (F)
False
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Ethologist Konrad Lorenz, evolutionary theorists, and sociobiologists agree that aggression represents __________.
A. a primitive fighting instinct shared across the animal kingdom B. a learned behavior C. the product of psychological dysfunction D. a distinctly human approach to conflict resolution
When Sam listens to his girlfriend Susan in the restaurant and ignores other people's conversations, he is engaged in the process of __________ attention.
A. low load B. divided C. cocktail party D. selective
When subjects are selected because of the presence or absence of a condition, rather than having a condition assigned to them, the experimenter is testing
a. subject variables b. construct validity c. face validity d. confounding variables
African American women have LBW infants at three times the national average
Indicate whether this statement is true or false.