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Dr. Watkins believes that a participant's anxiety levels following a scare tactic will be strongly related to their ability on a subsequent performance measure. Dr. Watkins is interested in which type of validity?
Null Hypothesis
A statement in statistics that assumes there is no significant difference or effect in a given situation, until evidence proves otherwise.
Sample Size
The number of subjects included in a study, influencing the study's ability to reliably detect effects or differences.
Type I Error
The incorrect rejection of a true null hypothesis, often referred to as a "false positive."
Type II Error
A statistical mistake that occurs when a test fails to reject a false null hypothesis.
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