Educational Assessment

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August 31, 2024 4 min read Definitions
Difficulty Parameter (b_i): Indicates the Ability Level at Which a Test-Taker Has a 50% Chance of Answering Correctly
Mathematics Statistics Education Item Response Theory (IRT) Educational Assessment Psychometrics Test Design Probability
An in-depth look at the Difficulty Parameter (b_i), its historical context, mathematical models, importance, applicability, and more.
Read more about Difficulty Parameter (b_i): Indicates the Ability Level at Which a Test-Taker Has a 50% Chance of Answering Correctly.
August 31, 2024 4 min read Definitions
Discrimination Parameter (a_i): Differentiating Abilities
Mathematics Statistics Item Response Theory Educational Assessment Psychometrics Statistical Models Measurement
The Discrimination Parameter (a_i) in Item Response Theory (IRT) measures how well an item distinguishes between individuals with different levels of ability.
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August 31, 2024 4 min read Definitions
Norm-Referenced Tests: An Evaluation Benchmark
Education Statistics Norm-Referenced Tests Educational Assessment Standardized Testing Statistics Benchmarking
Detailed exploration of Norm-Referenced Tests, including historical context, types, key events, mathematical models, importance, examples, and related terms.
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