A major limitation of longitudinal designs in particular is
a. age of the participants.
b. the ability to observe sequences of change.
c. practice effects.
d. experimenter bias.
c. practice effects.
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What is the main thing that IQ tests try to predict?
a. Mental health b. Levels of brain activity c. Social and emotional adjustment d. Performance in school
Reserpine, which is associated with severe depression,
A. specifically depletes supplies of serotonin from the nervous system. B. increases the release of serotonin from vesicles. C. increases the release of all monoamines from vesicles. D. interferes with the storage of all monoamines in vesicles.
Andrew underwent a Wada test, in which one hemisphere is anesthetized at a time, prior to brain surgery. When his right hemisphere was anesthetized, he was unable to speak. How would Andrew's physicians most likely interpret this result?
A. They must have made a mistake, because language functions are supposed to be managed by the left hemisphere. B. Andrew must have had a hemispherectomy for Rasmussen's syndrome many years ago. C. Andrew is one of a minority of people whose language is managed by the right hemisphere. D. Andrew must be bilingual. It is likely that he will still be able to speak in his other language.
Brian and Tamara are concerned because their 12-month-old son has yet to speak his first word. As an expert in child development, what do you tell them?
a. They should be concerned as most children speak their first word before their first birthday. b. They shouldn't be concerned because boys develop speech much later than girls. c. They shouldn't be concerned because anywhere between 8 to 18 months of age is considered normal for speaking first words. d. none of these