An emerging view among researchers today is that ADHD may be attributable to __________.
A. a breakdown in executive control functions in the brain
B. failure for the body to metabolize artificial flavors and nutritional supplements
C. disorganized parenting practices
D. more responsive reward systems in the brain
Answer: A
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All of the following are aspects of the personal fable EXCEPT
A) personal uniqueness. B) reflective thinking. C) omnipotence. D) invulnerability.
The modern era of humane treatment can be traced to the ______
a. late 16th and early 17th centuries b. late 17th and early 18th centuries c. late 18th and early 19th centuries d. late 19th and early 20th centuries
The results from a two-factor analysis of variance show a significant main effect for factor A and a significant main effect for factor B. Based on this information, what can you conclude about the interaction between the two factors?
A) ?There must be a significant interaction. B) ?There probably is a significant interaction. C) ?The interaction cannot be significant. D) ?You cannot make any conclusion about the significance of the interaction.
When a researcher creates a study that does not involve random assignment of participants to groups, any differences in group performance can be due to which threat to internal validity?
a. History b. Maturation c. Selection d. Statistical regression