Researchers use descriptive statistics when they want to ________
a. draw inferences about how statistically meaningful a study's results are.
b. organize and summarize research data.
c. combine and analyze data from many studies.
d. assess how likely it is that a study's results occurred merely by chance.
Answer: b
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Jennifer has recently died in a car accident, and her medical file indicates that she has been diagnosed with schizophrenia for the past 13 years. Upon autopsy, which finding is the most likely?
a) atrophy of the Islets of Langerhans in her pancreas b) calcifications in her liver c) a decreased level of acetylcholine in her limbic system d) enlarged ventricles in her brain
In 1848, Phineas Gage, a foreman on a railroad construction crew, suffered a serious head injury when an accidental explosion fired a 13-pound metal rod through his left cheekbone and out the top of his cranium
The damage to Gage's left frontal lobe triggered __________ A) frequent seizures and episodic memory loss. B) profound mental and physical retardation. C) a permanent loss of his vision and hearing. D) a permanent and profound change in his personality.