A researcher is interested in studying aggression. In order to measure aggressiveness, he asks parents of nursery school children to rate how aggressive their child is, on a scale of 1 to 7. In this case, the rating that each parent gives his or her child is a __________________.
a. a psychological construct
b. a dependent variable
c. an independent variable
d. an operational definition
Answer: d. an operational definition
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Morphine and other opiate drugs decrease sensitivity to pain by ____
a. depleting substance P from parts of the nervous system b. mimicking the effects of endorphins at the synapses c. preventing sodium from crossing the membrane d. altering blood flow to various parts of the nervous system
Research that demonstrated that Black children often preferred playing with a White doll than a Black doll was cited in Brown v. Board of Education of Topeka, in which the Supreme Court ruled that segregation of public schools was unconstitutional. Who conducted this research?
a. ?Martin Seligman and Ed Diener b. ?Kenneth Clark and Mamie Phipps Clark c. ?Abraham Maslow and Carl Rogers d. ?Abraham Maslow and Carl Rogers
Twin studies suggest that schizophrenia
A) is caused entirely by genetic factors. B) is caused entirely by environmental factors. C) is likely caused by a combination of genetic and environmental factors. D) is more likely to occur in twins than non-twins.
Which of the following children are classified as gifted and talented?
a. Sam, who learned to play the violin when he was three, but quickly gave it up in favor of spending more time with his family rather than practicing. b. Elia, who as a toddler loved to do simple math using her toys, and who is now, at the age of 10, taking advanced calculus classes at the university. c. Jacob, who has a knack for drawing and painting, but also enjoys sports and other athletic endeavors. d. Samantha, who does well in school, but does not stand out in any particular subject area.