Suppose you just read a careful statistical study of the effect of improvedhealth of children on their test scores at school. Using data from a project in aWest African district, in 2000, the study concluded that students who receivedmultivitamin supplements performed substantially better at school. Use theconcept of external validity to determine if these results are likely to apply toIndia in 2000, the United Kingdom in 2000, and West Africa in 2015.
Suppose you just read a careful statistical study of the effect of improvedhealth of children on their test scores at school. Using data from a project in aWest African district, in 2000, the study concluded that students who receivedmultivitamin supplements performed substantially better at school. Use theconcept of external validity to determine if these results are likely to apply toIndia in 2000, the United Kingdom in 2000, and West Africa in 2015.
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Suppose you just read a careful statistical study of the effect of improved
health of children on their test scores at school. Using data from a project in a
West African district, in 2000, the study concluded that students who received
multivitamin supplements performed substantially better at school. Use the
concept of external validity to determine if these results are likely to apply to
India in 2000, the United Kingdom in 2000, and West Africa in 2015.
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