Which statement about tension headaches is true?
A. Tension headaches are less common than migraines.
B. Tension headaches are triggered by stress and eyestrain.
C. Tension headaches involve decreased blood flow to the brain.
D. Tension headaches are characterized by an upset stomach.
B. Tension headaches are triggered by stress and eyestrain.
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At the mall you overhear several 16-year-olds talk about how a friend is having a big party with alcohol when their parents are gone for the weekend. You marvel at their immaturity and wonder how anyone could be that "stupid." What part of the adolescent's brain is still not fully developed and would account for making decisions and planning?
A. reticular formation B. prefrontal cortex C. cerebellum D. hypothalamus
Research on learning environments suggests that __________ fosters a strong commitment to learning in Asian families and schools
A) emphasis on native ability B) emphasis on effort C) a shorter school year D) ability grouping
Scientists comparing whites, African-American, Hispanics, and Asian adolescents find that
A) their educational aspirations are generally similar. B) Asian students have much higher educational aspirations than the others. C) White students have much higher educational aspirations than the others. D) African-American students have much higher educational aspirations than the others.
Which of the following is not true about mild mental retardation?
a. It shows similar prevalence rates across ethnic groups. b. Its definition is influenced by social norms and expectations. c. Its prevalence rates fluctuate depending on the IQ cutoff used. d. Its origins are more often familial and social than biological. e. It affects boys and girls about as often.