Examlex
One purpose of tragedy was to help the audience purge their emotions.
Two-tailed Hypothesis
A statistical test hypothesis that allows for the possibility of an effect in two directions, either greater than or less than a specified range or parameter.
One-tailed Hypothesis
A directional statistical hypothesis that specifies an expected relationship or difference in one direction between variables or groups.
Null Hypothesis
A default hypothesis that there is no statistical significance or effect in the relationship between two measured phenomena.
Closed-ended Research
A research method that uses structured questions or surveys, where respondents choose from predetermined answers.
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