All of the following bodily fluids can transmit the HIV virus, EXCEPT
A) blood.
B) breast milk.
C) vaginal secretions.
D) saliva.
D
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James Olds and Peter Milner provided rats with the opportunity to electrically stimulate their own pleasure centers in the brains by pressing a lever. What was a key finding of that experiment?
A. The rats avoided the lever completely. B. The rats showed restraint and rarely pressed the lever. C. The rats would press the lever, but stop during feeding time. D. The rats chose to press the lever rather than seek food, sex, and water.
The emotional reactions to death described by Kübler-Ross are
a. fixed and invariant. b. comparable to other developmental stage theories. c. a progression in which each successive stage is more advanced. d. common but not universal.
According to Piaget, which of the following stages begins in adolescence?
A) Concrete operational B) Formal operational C) Preoperational D) Sensorimotor
When research results are not consistent with a theory, the researcher's next step usually involves ________
a) replacing the theory with a different one b) modifying the theory and collecting additional data c) modifying the results to be consistent with the theory d) shifting to a different paradigm