Hallucinations involve
a. false beliefs that are held even when the facts contradict them.
b. imaginary sensations that do not exist in the real world.
c. major disturbances in mood or emotion.
d. unusual behaviors, such as tics and waxy flexibility.
B
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Research methods designed for making careful, systematic observations are called ____
a. correlational methods b. inferential methods c. experimental methods d. descriptive methods
Dr. Henderson is trying to decide whether a new patient should be diagnosed as suffering from schizophrenia, schizophreniform disorder, or brief psychotic disorder. The information she should use is ____
a. whether there are positive or negative symptoms b. the pathognomonic symptoms of schizophrenia c. whether the person is old or young d. how long the symptoms have lasted
In a memory test, the test of statistical significance used showed a probability of .025 that the group mean of the experimental group and the group mean of the control group would differ as much as they do by chance alone. This allows us to
a. estimate the percent of variance between the two group means. b. establish a normal curve, regarding the memory score changes that occurred. c. calculate the measures of central tendency and measures of variability for this experiment. d. conclude with reasonable certainty that the drug actually did improve memory scores.
Alberto was diagnosed with mental retardation when he was 5. He is now 10 and the disorder
has worsened over time. It is likely that Alberto has ______________ disorder. a. Fragile X b. Tay-Sachs c. sickle-cell d. Huntington's