The analysis is externally valid if
A) the statistical inferences about causal effects are valid for the population being studied.
B) the study has passed a double blind refereeing process for a journal.
C) its inferences and conclusions can be generalized from the population and setting studied to other populations and settings.
D) some committee outside the author's department has validated the findings.
Answer: C) its inferences and conclusions can be generalized from the population and setting studied to other populations and settings.
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Refer to Table 8-3. Consider the data above (in billions of dollars) for an economy: Gross domestic product (in billions of dollars) for this economy equals
A) $2,200. B) $1,600. C) $1,400. D) $1,200.
Life insurance companies are supervised and regulated by the
A) Federal Home Loan Bank Board. B) Securities and Exchange Commission. C) states in which they operate. D) Federal Reserve.
Marginal cost
A. equals the slope of the total cost curve. B. is calculated as DTC/DQ. C. is the increase in total cost resulting from a one-unit increase in output. D. All of the responses are correct.
Engineers for The Giffen Record Company have determined that a 35% increase in all compact disc inputs will cause a 45% increase in output. Assuming that input prices remain constant, you correctly deduce that such a change will cause ________ as output increases.
A. average costs to increase B. average costs to remain constant C. average costs to decrease D. marginal costs to increase