The critical thinking concept of replicability is best demonstrated by which of the following examples?
A) Research has found that there is a relationship between the amount of pain a person can tolerate and the color of their hair, suggesting that having red hair actually causes a decrease in pain tolerance.
B) Von Helmholtz repeated and extended the research into the trichromatic theory of color vision he proposed with Thomas Young by examining the colors that color-blind individuals could see.
C) There is evidence that color vision allowed animals to easily pick ripe fruit out of a green background, and more recent fossil evidence suggests that trichromatic vision may have enabled primates to find young, reddish, tender leaves that were nutritionally superior.
D) People who suffer from synesthesia are unable to successfully complete the Ganzfield task because their cross-modal perception makes the selection of specific shapes impossible.
Answer: B
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Answer the following statement true (T) or false (F)
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a. shortening b. lengthening c. shortening and then lengthening d. randomly varying the period
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Indicate whether the statement is true or false