Children born to mothers who smoked during pregnancy tend to score lower in
A) science.
B) social studies.
C) math.
D) writing.
C) math. Children born to mothers who smoked during pregnancy are more likely to be hyperactive and to have short attention spans, and they tend to score lower in reading, spelling, and math.
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Russell's mom wants him to study for two hours each night, so she gives him treats during the evening. Sometimes she gives him the treats after ten minutes, sometimes after thirty minutes. On the average, Russell is given a treat every twenty minutes. Which reinforcement schedule is Russell's mom utilizing??
a. ?fixed-ratio b. ?variable-ratio c. ?fixed-interval d. ?variable-interval
A boy hits his younger sister. What might a Rogerian therapist recommend the parents say to the child?
A. "Hitting your sister is wrong. You are a bad boy." B. "You need another way to express your feelings." C. "I love you, but I do not like it when you hit your sister." D. "You will be punished if you do that again."
Some researchers believe schizophrenia results from brain receptors becoming super-responsive to normal amounts of
a. schizotoxin. b. psychotropin. c. dopamine. d. acetylcholine.
Rich's first psychology exam score is +1 standard deviation from the mean in a normal distribution. The test has a mean of 60 and a standard deviation of 6 . Rich's percentile rank would be approximately:
a. 70%. b. 84%. c. 66%. d. Cannot say from the information given.