Which method is dependent upon injecting a radioactive chemical into the blood to measure blood flow?
A. fMRI
B. PET
C. CAT
D. magnetic stimulation
Answer: B
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Placebo effects occur when
a. people's expectations lead them to experience some change, even though they receive a fake or ineffective treatment. b. people recover from a mental or physical illness without any form of intervention. c. people who originally score extremely high or low on some trait are measured a second time, and their new score falls closer to the average. d. people who originally score near the average on some trait are measured a second time, and their new score falls at the extreme high or low end of the scale.
In a study on the effects of exercise on stress, researchers predict that there will be a difference in stress level between the exercise and no exercise groups. The researchers are using a _____ hypothesis
a. two-tailed b. directional c. one-tailed d. one-tailed (also called directional)
Tim feels that he has worked very hard to get his promotion. However when his last sales pitch did not end up in a sale he attributed the failure to the fact that the company he was "pitching to" was having financial difficulties. Tim's behavior is an illustration of __________
a. the actor-observer effect c. the self-serving bias b. the foot-in-the-door technique d. a fundamental attribution error
A group of teachers is discussing how children read. Which of them made a TRUE statement?
a. Hester, who said beginning readers sound words out, but advanced readers always retrieve words from memory. b. Fran, who said advanced readers sound words out and only beginning readers use memory retrieval. c. Carolyn, who said that as readers become more skilled, they sound out fewer words and retrieve more words from memory, but will still sound out unfamiliar words. d. Mary, who said sounding out words is quicker than retrieving words from memory.