A factor or characteristic that can vary within an individual or between individuals is known as a(n)
A. operational definition.
B. hypothesis.
C. null hypothesis.
D. variable.
Answer: D
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Which statement best illustrates Gassendi’s beliefs?
a. The mind has knowledge of extended objects. b. The immaterial mind explains human activity. c. Spiritual forces directly influence physical matter. d. Humans consists of nothing but matter.
In terms of the hereditary potential (i.e., genetic relatedness) for developing schizophrenia, the risk is about as high for the fraternal twin of a schizophrenic as for
a. the identical twin of a schizophrenic. b. a child with one schizophrenic parent. c. a child with two schizophrenic parents. d. a non-twin sibling of a schizophrenic.
Which one of the following is an example of a ratio level of measurement?
a. the number of times a laboratory monkey presses a bar in its experimental chamber during a one-hour period b. the temperature in Celsius of a hospital patient c. a racing-car driver's position at the end of a race d. a patient' rating of his own anxiety level on a scale where l0 represents "low anxiety" and l00 represents "extreme anxiety"
A person's sex is determined by
nurture during prenatal development. the 23rd pair of chromosomes. the first pair of chromosomes. hormones released during prenatal development.