Autoimmune diseases develop when
A) foreign bacteria invade the body.
B) infections resistant to antibiotics occur.
C) T cells prove ineffective against viruses.
D) the immune system attacks healthy cells.
D
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For a two-tailed test with ? = .05 and a sample of n = 16, the boundaries for the critical region are t = ±2.120
Indicate whether the statement is true or false
Which one of the following is NOT an assumption that test users make about psychological tests?
a. Test scores are 99.9% accurate with little or no error. b. Psychological tests measure what they say they measure. c. An individual’s behavior, and therefore test scores, will typically remain stable over time. d. Test takers will report accurately about themselves.
Before going to the library to study for his midterm, Mahmoud stopped to smoke a couple joints with some friends. Mahmoud did poorly on his test the next day, because he could barely remember anything he studied the night before. This is likely due to the marijuana's effect on:
A. anandamide. B. glutamate. C. dopamine. D. adenosine.
Compared to other drug classifications: CNS depressants
a. cause fewer deaths than cocaine, methamphetamine, and heroin b. are less harmful than other drugs because there is little harm from low level alcohol use c. are extremely dangerous due to the overprescribing of minor tranquilizers such as Valium and Xanax d. cause more acute and chronic harm than most other psychoactive drugs