A researcher investigates whether there is a relationship between hours spent watching television and children's vocabulary by asking 40 randomly selected 11-year-olds how many hours of television they watch per week and then having them take a vocabulary test. What is the independent variable in this study?
a. hours of television watching
b. vocabulary scores
c. age of the subjects
d. there is no independent variable; the study is correlational
D
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Regarding adult crystallized intelligence and fluid intelligence, which of the following statements is TRUE?
a. Both types of intelligence generally increase throughout the adult life span. b. Both types of intelligence generally decrease throughout the adult life span. c. After early adulthood, fluid intelligence generally decreases, while crystallized intelligence stays about the same or increases. d. After early adulthood, crystallized intelligence generally decreases, while fluid intelligence stays about the same or increases. e. Both types of intelligence decrease, but only in late adulthood.
Which statement most accurately describes what is going on in the brain when you are engaged in an everyday activity?
a. Each activity is associated with only one lobe. b. For most activities, only the frontal lobes are active. c. Although the brain operates as a whole, some functions are associated with specific areas. d. The brain operates as a unit, and no single area is necessary for any specific function.
The way a question is phrased may sometimes influence the way people respond to the question. In survey research, this is known as the issue of ________
A) faulty design B) wording C) leading questions D) systemic invalidation E) biasing
T tests are often __________ to assumption violations
Fill in the blanks with correct word