Which of the following is a true statement about antipsychotic medications?
A. Large numbers of clinical trials have failed to demonstrate the efficacy and effectiveness of these drugs.
B. Some clinical change can be seen within the first 24 hours, but it drops off rapidly thereafter.
C. These medications can take two to four weeks to have any effect on the patient.
D. The earlier patients receive these medications, the better they tend to do over the long term.
Answer: D
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To calculate the interquartile range, you must locate the scores that mark the middle 50% of the distribution by finding the bottom 25% of the scores and top 25% of the scores.
Answer the following statement true (T) or false (F)
Sandra desperately wants to join her friends on a European excursion, but the trip is so expensive she is having trouble deciding whether to go or not. Sandra is experiencing a(n) __________ conflict
a. approach-avoidance b. approach-approach c. avoidance-avoidance d. double appraisal
In a within-subjects design, as compared to a between-subjects design, you are:
a. less likely to reject the null hypothesis. b. more likely to make a Type II error. c. more likely to obtain a small F ratio. d. more likely to obtain a large F ratio.
Which of the following is true of neural impulses?
A. They are electrical in nature. B. They deliver excitatory and inhibitory messages. C. They are bidirectional. D. They are stored in the axons of neurons.