The alpha level _________
a. is always set at 0.05 or 0.01
b. is set after the data are analyzed
c. is determined by the consequences of making a Type I and Type II error
d. depends on N
C
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Alberto was diagnosed with mental retardation when he was 5. He is now 10 and the disorder
has worsened over time. It is likely that Alberto has ______________ disorder. a. Fragile X b. Tay-Sachs c. sickle-cell d. Huntington's
Adoption studies estimate the genetic contribution to a given trait by studying
A) adopted children only. B) adopted children and their biological family. C) adopted children, their biological family, and their adoptive parents. D) none of the above.
Crimes committed by juveniles are acts of __________
A. delinquency B. truancy C. maturation D. myelination
Moderate- to high-quality child care is linked to __________.
A. increased social competence B. decreased effortful control in children C. increased externalizing problems D. a steady increase in aggression that continues into the school years