This section explains some of the underlying test theory used in e-asTTle for those who are interested. For a simplified explanation, see Guidelines on creating a good test. For an explanation of the Multi-facet Rasch Model used in scoring Writing,…
Blog Archives
The Rasch Model in e-asTTle
Tagged with: guessing correction, how e-asttle works, IRT, psychometrics, scoring calculation, standard error
Posted in Reports
Posted in Reports
Guessing Correction
For Reading and Maths, an extra feature of e-asTTle scoring is a ‘guessing correction’ that excludes unlikely responses from the scoring calculation. When students correctly answer questions at a considerably higher curriculum level than expected given their overall response pattern,…
Tagged with: guessing correction, how e-asttle works, IRT, psychometrics, scoring calculation
Posted in Uncategorized
Posted in Uncategorized
Guidelines for creating good Custom and Adaptive Tests
e-asTTle testing is not about answering all questions correctly. 100% correct is not a desirable outcome! In fact, you will get the most useful information from e-asTTle when you set a test where you expect students to answer about 50%…
Tagged with: create test, create test advice, how to..., IRT, psychometrics, Rasch model, scoring calculation, targeting tests, test planning
Posted in Create Test
Posted in Create Test