When computing (m_1-m_2 )±t_(?/2) (s_(m_1-m_2 )), what is t_(?/2) when ? = .01, and one sample has 12 scores and the second has 16 scores?
a. 2.771
b. 2.479
c. 2.779
d. 2.437
Ans: C
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While observing people drinking from a cup or using ASL,
A. deaf participants who use ASL showed the same brain activity while processing all forms of movement, whereas hearing participants showed different patterns of activity for linguistic and nonlinguistic movement. B. deaf participants who use ASL showed different patterns of brain activity for linguistic and nonlinguistic movement, whereas hearing participants showed the same activity while processing all movement. C. both deaf and hearing participants showed the same brain activity while processing all movement. D. both deaf and hearing participants showed different patterns of brain activity for linguistic and nonlinguistic movement.
You are teasing your 53-year-old father that he is slower than you are in responding to a visual stimulus. He rightfully argues that ____
a. the difference is generally only found in laboratory settings b. if the difference were age-graded, he would be faster than you c. you should be more respectful d. research does not show a difference between young and middle adults in regards to reaction times
People sometimes have to assess whether someone is a member of a particular group. In assessing whether someone is gay or a Republican, for example, we often rely on the ____________ heuristic, which entails figuring out the degree to which ____________.
a. availability; someone resembles a category prototype. b. availability; someone can be categorized quickly. c. representativeness; someone resembles a category prototype. d. representativeness; someone can be categorized quickly.
Which system in the body is regulated, in part, by the brain and mobilizes defenses, such as white blood cells, against invading microbes and other disease agents?
a. immune system b. cardiovascular system c. limbic system d. reticular activating system