As experimental control increases:
a. external validity decreases.
b. external validity increases.
c. the more relevant the study to real-world problems.
d. we become less able to rule out alternative hypotheses.
A
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Oliver Sacks's patient with neglect syndrome had which of the following problems? a. He experienced phantom pain in his paralyzed leg
b. He often crashed into things, because he couldn't feel anything on one side of his body. c. He could not recognize Dr. Sacks when he visited. d. He could not recognize his own leg.
A psychology teacher wants to determine whether computer-aided learning will produce higher standardized test scores than a usual lecture format. In this example, the independent variable is the
a. individual students. b. students' previous grades in psychology. c. test scores. d. students' interest in psychology. e. method of instruction.
Cerebral palsy results from
A) an extra X chromosome. B) a mutation in the twenty-first pair of chromosomes. C) a recessive disorder involving a harmful allele. D) brain damage before, during, or just after birth.
Which of the following statements regarding genes, the brain, and personality is false?
a) The BDNF gene is associated with negative emotionality and impaired memory processes. b) Better white matter integrity has been associated with the traits of openness and agreeableness. c) White matter integrity is decreased and inferior in individuals with personality disorders such as borderline personality disorder. d) The BDNF gene significantly influences white matter integrity in healthy patients as well as those diagnosed with personality disorders.