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___________ are small groups of friends who know each other well, do things together, and form a regular social group; in contrast, __________ are larger, reputation-based groups of adolescents who are not necessarily friends and do not necessarily spend much time together.
Unknown Validity
A term indicating that the effectiveness, accuracy, or effect of something cannot be verified or confirmed.
Wide Distribution
The extensive spreading of something, such as a product, phenomenon, or piece of information, across a large area or amongst a large number of people.
Predictive Validity
The extent to which a score on a scale or test predicts future performance on a related outcome.
Reliability
The degree to which an assessment tool produces stable and consistent results over repeated measures or uses.
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