Answer: elimination of alternative explanations
Explanation:
Cook and Campbell described three kinds of evidence that can be used to recognize the cause of a behavior maximizing internal validity: temporal precedence, covariation of cause and effect, and alternative explanations.
The elimination of alternative explanations refers to making sure that only one causal variable can be accountable for a specific observed effect.
Rushed conclusions may lead to leaving aside other possible causes.
Cristopher Columbus sailed omong the English and dutch
Answer:
Roosevelt was a leader of the progressive movement, and he championed his "Square Deal" domestic policies, promising the average citizen fairness, breaking of trusts, regulation of railroads, and pure food and drugs. ... In foreign policy, he focused on Central America where he began construction of the Panama Canal.
Explanation:
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In large cities but mainly in the suburbs
Demography is the statistical study of populations, especially human beings.