The Influence of Item Discrimination on Misclassification of Test Takers
It has been suggested that low discriminating items can be included in a test with a criterion-referenced score interpretation as long as they measure a highly relevant content. However, low item discrimination increases the standard error of measurement, which might increase the expected proportion...
Guardado en:
| Autor principal: | |
|---|---|
| Formato: | Artículo revista |
| Lenguaje: | Español |
| Publicado: |
Facultad de Psicología. Laboratorio de Evaluación Psicológica y Educativa (LEPE)
2021
|
| Materias: | |
| Acceso en línea: | https://revistas.unc.edu.ar/index.php/revaluar/article/view/36294 |
| Aporte de: |
| id |
I10-R10article-36294 |
|---|---|
| record_format |
ojs |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-10 |
| container_title_str |
Revistas de la UNC |
| language |
Español |
| format |
Artículo revista |
| topic |
decision accuracy item discrimination item response theory Rudner algorithm information function precisión de la decisión discriminación de los ítems teoría de respuesta al ítem algoritmo de Rudner función de información |
| spellingShingle |
decision accuracy item discrimination item response theory Rudner algorithm information function precisión de la decisión discriminación de los ítems teoría de respuesta al ítem algoritmo de Rudner función de información Trujano, Raúl Emmanuel The Influence of Item Discrimination on Misclassification of Test Takers |
| topic_facet |
decision accuracy item discrimination item response theory Rudner algorithm information function precisión de la decisión discriminación de los ítems teoría de respuesta al ítem algoritmo de Rudner función de información |
| author |
Trujano, Raúl Emmanuel |
| author_facet |
Trujano, Raúl Emmanuel |
| author_sort |
Trujano, Raúl Emmanuel |
| title |
The Influence of Item Discrimination on Misclassification of Test Takers |
| title_short |
The Influence of Item Discrimination on Misclassification of Test Takers |
| title_full |
The Influence of Item Discrimination on Misclassification of Test Takers |
| title_fullStr |
The Influence of Item Discrimination on Misclassification of Test Takers |
| title_full_unstemmed |
The Influence of Item Discrimination on Misclassification of Test Takers |
| title_sort |
influence of item discrimination on misclassification of test takers |
| description |
It has been suggested that low discriminating items can be included in a test with a criterion-referenced score interpretation as long as they measure a highly relevant content. However, low item discrimination increases the standard error of measurement, which might increase the expected proportion of misclassified test takers. In order to test it, responses from 2000 test takers to 100 items were simulated, varying item discrimination values and number and location of cut scores, and classification inaccuracy was estimated. Results show that the expected proportion of misclassified test takers increased as item discrimination decreased, and as the cut scores were closer to the mean of the distribution of test takers. Therefore, a test should include as few items with low discrimination values as possible —or even none— in order to reduce the expected proportion of test takers classified into a wrong performance level. |
| publisher |
Facultad de Psicología. Laboratorio de Evaluación Psicológica y Educativa (LEPE) |
| publishDate |
2021 |
| url |
https://revistas.unc.edu.ar/index.php/revaluar/article/view/36294 |
| work_keys_str_mv |
AT trujanoraulemmanuel theinfluenceofitemdiscriminationonmisclassificationoftesttakers AT trujanoraulemmanuel influenciadeladiscriminaciondelositemsenlaclasificacionincorrectadelosexaminados AT trujanoraulemmanuel influenceofitemdiscriminationonmisclassificationoftesttakers |
| bdutipo_str |
Revistas |
| _version_ |
1764819783520354305 |