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The point-biserial correlation between the item score and the score on the criterion variable is needed to compute the
Physical Actions
Movements or gestures by the body that convey messages, express emotions, or perform tasks.
Extraneous Noise
Unnecessary or unrelated sounds that interfere with the primary signal or communication being attended to.
Personal Appearance
The physical external presentation of oneself, including clothing, grooming, and body language.
Backdrop Importance
The significance of a setting or background context in enhancing the understanding or impact of an event, story, or presentation.
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