Which of the following is a disadvantage of using the range as a measure of variation?
a. It is limited because only two of the scores in a distribution are used to derive it.
b. It is easily distorted by an unusually high or low score in a distribution.
c. It can only be used with nominal data.
d. Both a and b are disadvantages.
d
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Permission obtained from a research participant after the risks and benefits of an experimental procedure have been thoroughly explained is called ____
a. informed consent b. assumption of risk c. IRB approval d. parental assent
According to the DSM, one of the features of amphetamine intoxication is a. psychomotor agitation
b. gastrointestinal disturbances. c. dry mouth. d. blurring of vision.
For most severe mental disorders, such as bipolar disorder and schizophrenia, research has found that treatment should definitely include:
A) medication. B) psychotherapy. C) medication and psychotherapy. D) psychosurgery.
Hallucinations arising from eye disease are symptoms of a disorder termed:
A) macular degeneration. B) glaucoma. C) retinopathy. D) Charles Bonnet syndrome.