Of the following, the most accurate statement with regard to the genetic influences of ADHD is that
A. there are no known genetic influences.
B. there appears to be a single gene influence.
C. there appear to be multiple genetic influences.
D. defects on the Y chromosome are the major influence.
Answer: C
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A(n) ________ variable is any factor other than the independent variable that can affect the movement of the dependent variable in an experiment.
A. confounding B. extraneous C. correlational D. analytic
Which is true concerning Kohlberg's theory of moral development??
a. ?He was more concerned with reasons behind a decision than with the actual decision itself. b. ?He thought development ended during adolescence. c. ?He thought that stages of development were culturally determined. d. ?He believed that at least half of the adult population would reach the highest stage.
Control groups should receive exactly the same treatment as the experimental effects when conducting a research study
Indicate whether the statement is true or false.
A national survey on the impact of divorce on children found that most children suffer ________
a. little emotional distress at the time or in the long-term b. little emotional distress at the time but develop severe emotional problems later c. intense emotional distress at the time but most recover within a year or two d. intense emotional distress at the time and do not recover from it for 5 to 10 years