Linear Models for Optimal Test Design

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The book explores significant advancements in psychometric methods over nearly four decades, focusing on criterion-referenced assessment and item response theory (IRT). It details how these developments, initiated by pioneers like Robert Glaser and Frederic Lord, shifted the focus from norm-referenced to criterion-referenced assessments, enhancing measurement practices. The author discusses the evolution of IRT to address limitations of classical test theory, emphasizing improvements in test development, equating, and adaptive testing to better evaluate candidate performance at the item level.