Like unit normal table, we can use the t Table to figure out if our sample mean is in the critical region(s) of the distribution of sample means when the null hypothesis is true.
Answer the following statement true (T) or false (F)
True
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People living under stressful conditions tend to get sick more often than they would otherwise
How do researchers in psychoneuroimmunology explain this phenomenon? A) The stress response reduces immune system functioning, thus making us more vulnerable to diseases. B) The stress response in the long run leads to a lowering of the heart rate, which makes the heart inefficient. C) The stress response makes muscles stronger, which places a greater burden on the heart and respiratory systems. D) The body tends to adapt to the constant call for the stress response and, thus, future responses are not as strong as before.
A graduate student interested in the Sensation-Seeking Scale administers the test to a sample of mountain climbers. Their scores are much higher than the scores obtained by the general population. How would the student interpret this finding?
a) The finding supports the scale's reliability. b) The difference in scores supports the scale's validity. c) The finding is consistent with the presence of undiagnosed psychological disorders. d) The difference in scores supports the notion that mountain climbers have a death wish.
Parents actively reinforce __________ in boys and __________ in girls
A) supportive talk; demands for attention B) independence; dependency C) closeness; emotionality D) emotional sensitivity; emotional restraint
Which of the following is asserted by supporters of discontinuous development?
A. Developmental changes are sudden. B. Genetics determine development. C. Developmental changes are gradual. D. Environment determines development.