Operational definitions:
a. ensure the results of a scientific investigation will be externally valid
b. define concepts in terms of how they will be measured
c. are only necessary in experimental studies
d. define concepts in abstract terms
B
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Keysha's mother is homozygous for a dominant allele for unattached earlobes and her father is homozygous for a recessive allele for attached earlobes. What is true about Keysha's earlobes?
A. Keysha has a homozygous genotype. B. Keysha's phenotype is not predictable from her genotype. C. Keysha has attached earlobes. D. Keysha has unattached earlobes.
Most psychologists prefer the Big Five personality model to Eysenck's theory of personality. As it pertains to the role of parsimony in evaluating these theories, the general acceptance of the Big Five model over Eysenck's theory of personality demonstrates the general rule that:
A) the simpler theory is usually preferred. B) parsimony becomes less important as science advances. C) it is easier to discredit a more complicated theory. D) a theory should only become more complex when it needs to be.
A factorial design involves a. measuring more than one dependent factor (variables)
b. both a and b. c. none of the above d. manipulating more than one independent factor (variable).
______ is higher for nonparametric tests.
A. Type II error B. Type I error C. Correlation score D. P value