Which of the following is an equal-opportunity medium, being available to children of all socioeconomic and ethnic backgrounds?
a. television c. cell phones
b. computers d. the Internet
A
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Research on factors contributing to building relationships seems to SUPPORT the adage,
a. "similarity breeds contempt.". b. "similarity breeds liking.". c. "similarity builds uncertainty.". d. "similarity builds discrimination.".
When hypnotic suggestion is used to increase the perception of pain without actually increasing the intensity of any stimulus, the ___ shows increased activity, but not the ___
a. anterior cingulate cortex; somatosensory area b. somatosensory area; anterior cingulate cortex c. posterior cingulate cortex; anterior cingulate cortex d. anterior cingulate cortex; limbic system
In a ttest for dependent means, 15 participants are each tested twice. This makes a total of 15 "before" scores and 15 "after" scores. What are the degrees of freedom?
A) 15 B) 14 C) 30 D) 29
The last major organ system to develop in the final 2 months of the fetal period is
a. the heart. b. the lungs. c. the kidneys. d. the digestive system.