ID: 60038
Creador: MELIA NAVARRO, JOSE LUIS 
Categoría: Psicología

Clasificación Unesco: Psicología::Evaluación y diagnóstico en psicología::Psicometría
Descripción: This audio podcast explains the different ways we may sketch an Item Characteristic Curve (ICC), even using just a pocket calculator and a piece of paper.
In Item Response Theory (IRT), an ICC is the graphical expression of a logistic function (like a 1PL 2PL or 3PL model) and shows the probability of the correct answer (P(Theta)) for every latent trait level (Theta).
Etiquetas: Psychometrics IRT CTT ICC 1PL 2PL 3PL
Resolucion:
Puntuación: Sense puntuacio (puntuar).
Licencia CC: Reconocimiento - NoComercial (by-nc)a
Visitas: 67
This video explains slide 9 from the document P08.1. How to calculate the probability of agreement by chance between two raters, or between a prediction and the real result.
T05.1 Slides 2-9. "Situation 1": The definition of the true score, the observed score, and the error of measurement. Why the sum (and the mean) of the errors of measurement is always 0 in situation 1.
This podcast explains slide 2 from the document “T13.01. Information functions”. Contents: -Description and interpretation of a graph displaying the ICCs of two items. -Comparison of the two ICCs from the perspective of the item the discrimination.
How to solve a Thurstone Paired Comparisons problem using EXCEL.
How to calculate the probability of a correct answer given a logistic model (1PL, 2PL, and 3PL) Knowing the examinee's theta score and the item parameters, this video shows how to calculate and interpret the probability of a correct answer.