According to the Yerkes-Dodson law, successful performance on a difficult and complex task requires _____
a) no arousal.
b) lower arousal.
c) moderate arousal.
d) higher arousal.
Answer: b
Psychology
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Sickle-cell disease
a. occurs in individuals who have one allele for normal blood cells and one allele for sickle-shaped cells. b. is not an inherited disorder. c. is not a serious health problem because it is easily cured. d. is becoming less common in successive generations of African Americans.
Psychology
A time in which the individual is especially responsive to environmental influences is known as a(n) __________ period
A) adaptive B) critical C) sensitive D) restricted
Psychology