An exclusive preschool program has strict enrollment criteria and only accepts children with very high marks on the enrollment test. Unfortunately, they have found that the enrollment test does not correlate highly with the grades the children make. The probable reason is
a. predictor/criterion confusion.
b. an invalid criterion.
c. convergent evidence.
d. range restriction.
d
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Rapid physical changes during puberty have what effect on the adolescent's need for sleep?
a. increases the adolescent's need for sleep b. slightly decreases the adolescent's need for sleep c. significantly decreases the adolescent's need for sleep d. has no effect on the adolescent's need for sleep
Sudden cardiac death is the result of extreme ______ activity, which destabilizes the heart's contractions.
A. cortisol B. sympathetic C. parasympathetic D. hypothalamus-pituitary-adrenal
Most informal youth societies are located:
A) in church. B) in school. C) in street gangs. D) outside of school.
Which of the following is true?
A) Older persons have an easier time learning a new activity that requires fine motor skills. B) Older adults' sense of balance appears to improve with age. C) Fine motor skills with older adults' area of expertise decline little and improve with age. D) Loss of fine motor skills dramatically declines in old age.