Dr. Zink and Dr. Vasquez are designing a new study. They have come up with a good hypothesis for the study, but they are having trouble thinking of operational definitions for their variables. In other words, they are concerned that their research might be low in ____
a. internal validity
b. external validity
c. construct validity
d. face validity
C
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Mr. Grammarcy has been having trouble sleeping at night, and his lack of sleep is beginning to interfere with his ability to function properly during the day. He's concerned that he may lose his job in the next round of layoffs at his company. He is also having marital problems. He tends to lay awake at night, worrying about these problems and thinking about what he can do to resolve these
issues. Based on the discussion in the text, Mr. Grammarcy should understand that . a. worrying increases one's bodily arousal, which can prevent normal sleep b. daily hassles and concerns do not normally interfere with normal sleep, so he should look for a medical reason for his insomnia c. when his marital issues are resolved, his sleep pattern will return to normal, regardless of his concerns about his job d. sleep is a natural function that cannot be forced without medical intervention or biofeedback training e. sleeping pills, used according to directions, will resolve his sleep problems
Rachel can sort objects by size or color and can solve simple addition and subtraction problems. However, she cannot think logically about abstract ideas such as freedom and justice. Rachel is most likely in Piaget's ____ stage of cognitive development.?
a. ?sensorimotor b. ?preoperational c. ?concrete operational d. ?formal operational
Which word would least likely be found in a description of "boys play?"
A. Competitive B. Cooperative C. Rough D. Intimidation
A researcher asks a child to read a story, and then asks the child to overview its plot and
conclusion to assess linguistic production abilities. This researcher is using a(n) __________ paradigm. Fill in the blanks with correct word