CTT (Classical Test Theory)

Classical Test Theory (CTT) is a framework used to understand and improve testing quality. It assumes that every test score reflects a person’s true ability plus some random error. The goal is to measure this true ability reliably, recognizing that scores can vary due to factors like guesswork or distractions. CTT helps test developers identify and minimize errors, ensuring assessments are consistent and fair. Essentially, it’s a way to improve measurement accuracy in testing situations by accounting for and reducing the influence of unpredictable factors.