Descriptor
| Achievement Tests | 1 |
| Aptitude Tests | 1 |
| Latent Trait Theory | 1 |
| Mathematical Models | 1 |
| Test Interpretation | 1 |
| Test Reliability | 1 |
Source
| Psychometrika | 1 |
Author
| Andersen, Erling | 1 |
| Madsen, Mette | 1 |
Publication Type
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedAndersen, Erling; Madsen, Mette – Psychometrika, 1977
Methods for estimating the mean and variance of latent ability parameters of a normally distributed population that has been tested with Rasch model-calibrated test items are discussed. Methods for checking the normality of the population are also included. (JKS)
Descriptors: Achievement Tests, Aptitude Tests, Latent Trait Theory, Mathematical Models
