Group differences in test scores can result in differential rates of hiring, your text offers which of the following as a possible explanation for the discrepancy in average test scores across groups?
A. The various demographic groups in society are not equal in the attributes being assessed
B. The test may be biased against the lower scoring group
C. The test scores are not exhibiting what there is to be revealed
D. All of the above
E. A and B only
Answer: E. A and B only
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Muscle fibers and neurons are called electrically excitable cells because
A) their membranes change shape in response to electricity. B) they generate action potentials. C) their surfaces respond to the release of acetylcholine. D) they have junctional folds in the membranes that can trap electrical charges.
When voltage-gated K+ channels open on the conductive segment of a neuron,
A. potassium enters, depolarizing the cell to a positive value. B. potassium exits, depolarizing the cell to an even more negative value. C. potassium exits, repolarizing the cell to a negative value. D. potassium enters, repolarizing the cell to a negative value. E. potassium enters, repolarizing the cell to a positive value.
Muscles visible at the body surface are often called
A) internus. B) rectus. C) profundus. D) intrinsic. E) superficialis.
What is the survival rate of a localized malignant melanoma that is detected and removed in the early stages of the cancer?
A) Above 95% B) 75% C) 60% D) 40% E) less than 20%