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Interpret Statistical Significance
Grade Level
AP Psychology
AP.058 Interpret Statistical Significance
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A researcher changes the significance criterion from .05 to .10 after seeing p = .08 for a motivation intervention. Which concern is most relevant?
A
The result proves the intervention has no effect because .08 is above .05.
B
Changing alpha after seeing the result makes the statistical-significance decision less trustworthy.
C
The result was already statistically significant at .05.
D
Alpha can always be changed after data collection without affecting interpretation.
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