Using Polynomial Models in RD Can Produce Bumps at the Cutoff

question 5

True/False

Using polynomial models in RD can produce bumps at the cutoff that are larger than they should be.

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Definitions:

Nondirectional

Refers to hypotheses or predictions that do not specify a predicted direction of the relationship between variables.

One-Tailed T Test

A variation of the t-test that is used when a hypothesis predicts the direction of a potential difference between group means; it assesses whether this predicted difference is statistically significant in one specific direction.

Correlations

A statistical measure that expresses the extent to which two variables change together.

Groups

Collections of subjects, items, or observations often categorized based on specific characteristics for analysis.