Glossary I

Item homogeneity refers to the extent to which test items measure the same construct.

Deutsch: Item-Response-Theorie / Español: Teoría de Respuesta al Ítem / Português: Teoria de Resposta ao Item / Français: Théorie de la réponse à l'item / Italiano: Teoria della risposta all'item

Item Response Theory (IRT) is a paradigm in psychometrics that models the relationship between latent traits of individuals and their responses to test items. Unlike classical test theory, IRT provides probabilistic frameworks to estimate both person abilities and item characteristics, enabling more precise and adaptive measurement in psychological and educational assessments.

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Item stability refers to the extent to which responses to the same test items are consistent analyzed.

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IVF is the abbreviations of In vitro fertilization, a a procedure in which a woman"s ova are removed from her body, fertilized with sperm in a laboratory, and then surgically implant

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