Most individuals with Down syndrome have
a. one less chromosome on the 21st pair. c. one less chromosome on the 23rd pair.
b. one extra chromosome on the 21st pair. d. one extra chromosome on the 23rd pair.
B
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The fact that researchers often unintentionally influence the outcome of their studies implies the existence of
a. experimenter bias. b. a placebo effect. c. sampling bias. d. social desirability.
Which of these experiences is likely to cause the most distress in an adolescent?
a. working in a group b. eating in the presence of others c. writing in the presence of others d. initiating/maintaining conversations
Like Piaget’s theory, the information-processing approach________
A) divides development into stages B) views development as discontinuous C) regards people as actively modifying their own thinking D) has much to say about nonlinear cognition, such as imagination and creativity
Which neurotransmitter was the first to be linked with schizophrenia?
A. dopamine B. serotonin C. norepinephrine D. endorphins E. GABA