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Psychology
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Experiments and Causal Conclusions
Grade Level
Psychology
PSY.030 Experiments and Causal Conclusions
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A blocking diagram groups students by low, medium, and high prior skill, then randomly assigns students within each block to Strategy A or Strategy B. How does this support causal inference?
A
It balances prior skill across strategies while preserving random assignment within each skill block.
B
It lets only high-skill students enter the experimental condition.
C
It turns prior skill into the manipulated independent variable.
D
It removes the need to control the study materials.
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