The UIS Glossary includes statistical terms related to education, science, technology and innovation, culture, and communication & information . Some of the entries contain translations in one or more of the following languages: Arabic, English, French and Spanish. Other entries provide more detailed information, such as definitions, calculation formulas for indicators and sources. Indicators are marked with an asterisk (*).

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Scale scores

Definition
Ability estimates that are generated from Item Response Theory (IRT) models, which are based on students’ response vectors. Scale scores are designed to provide a metric that is consistent for different versions of a test and consistent across time.

Scores d’échelle

Définition
Estimés des habiletés générés par les modèles de la théorie de la réponse à l’item (TRI), sur base des vecteurs de réponse des apprenants. Les scores d’échelle sont destinés à procurer une métrique cohérente pour différentes versions d’un test et dans le temps.

Puntajes de la escala

Definición
Estimaciones de habilidades derivadas de modelos de teoría de respuesta al ítem (IRT) basados en vectores de respuesta de los estudiantes. Los puntajes de la escala han sido diseñados para proporcionar una métrica consistente tanto en las distintas versiones de la prueba como a través del tiempo.