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Distinguish Correlation from Causation
Grade Level
Praxis Core
5165.252 Distinguish Correlation from Causation
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A researcher wants to test whether a new practice-test schedule causes better Praxis Mathematics scores. Which plan best supports a causal conclusion?
A
Survey high-scoring students about which schedule they preferred after the test.
B
Randomly assign eligible students to the new schedule or the usual schedule, keep other supports similar, and compare later scores.
C
Compare this year's class using the new schedule with last year's class using many different materials.
D
Ask volunteers using the new schedule whether they felt prepared.
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