A psychologist devises a test to measure anxiety. He administers this test to over 1,000 persons and learns how many people show low, medium, or high levels of anxiety. Usually the results of such tests tend to form a(n)
a. normal or bell-shaped curve.
b. skewed deviation curve.
c. U-shaped curve.
d. scatter plot.
A
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In a mixed factorial design, there are _____ degrees of freedom associated with the error term for evaluating the between subjects factor
a. a-1 c. (a-1)(b-1) b. a(n-1) d. na-1
When Daniel drives down the street, other people stop and stare because of the loud, low-pitched sounds coming from the new sound system in his car. What types of sound waves are coming from Daniel's car?
A. high amplitude, low frequency B. high amplitude, high frequency C. low amplitude, low frequency D. low amplitude, high frequency
Binet conducted his first studies of intelligence on:?
a. ?identical twins b. ?normal children c. ?children with intellectual disabilities d. ?his daughters
Wolfgang Köhler suggested that chimps
a. can use a primitive form of language. b. would seek affection directly from Kohler. c. avoid other chimps. d. are capable of insight learning. e. administer punishment to other chimps.