Test theory, often referred to as psychometric theory or measurement theory, is a framework that focuses on the development, analysis, and interpretation of tests and assessments used to measure psychological constructs, abilities, traits, or behaviors. It encompasses a variety of approaches and methodologies for ensuring that tests are reliable, valid, and fair. Key components of test theory include: 1. **Classical Test Theory (CTT)**: This is one of the earliest and most widely used frameworks.
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