Which statement is correct regarding the incidence of schizophrenia?

A. Roughly 10 percent of the world's population is affected.
B. Schizophrenia is primarily diagnosed during childhood.
C. Positive symptoms tend to emerge before negative symptoms.
D. The symptom categories of schizophrenia are universal.


Answer: D

Psychology

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a. manipulation of an independent variable b. statistical control over many extraneous variables c. a control group d. external validity

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In presenting a therapy case to his colleagues for consultation, Dr. Jeffries remarks that he and the client have a good rapport. Therefore we may be confident in thinking that

a. Dr. Jeffries likes his client. b. Dr. Jeffries's client likes him. c. both of the above d. neither of the above

Psychology

As children grow from 18 months to 9 years, emotionality __________.

A. remains the same B. increases C. fluctuates D. declines

Psychology

Mentally rehearsing potentially unpleasant events and gaining information about

what to expect is referred to as a. extraversioin b. work of worrying c. catastrophizing d. psyching yourself out e. pessimism

Psychology