Descriptor
| Cluster Analysis | 2 |
| Monte Carlo Methods | 2 |
| Test Items | 2 |
| Ability | 1 |
| Correlation | 1 |
| Difficulty Level | 1 |
| Error of Measurement | 1 |
| Factor Analysis | 1 |
| Goodness of Fit | 1 |
| Item Response Theory | 1 |
| Latent Trait Theory | 1 |
| More ▼ | |
Source
Author
| Jones, Patricia B. | 1 |
| Yan, Jean W. | 1 |
Publication Type
| Speeches/Meeting Papers | 2 |
| Reports - Evaluative | 1 |
| Reports - Research | 1 |
Education Level
Audience
| Researchers | 1 |
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Download full textYan, Jean W. – 1997
Context-dependent items are traditionally analyzed independently, creating a situation in which the potential local item dependence effects among these items may cause a biased estimation of examinees' abilities. This study investigated the local item dependence effects on testlets in the tryout version of a statewide science assessment by a Rasch…
Descriptors: Ability, Cluster Analysis, Goodness of Fit, Item Response Theory
Jones, Patricia B.; And Others – 1987
In order to determine the effectiveness of multidimensional scaling (MDS) in recovering the dimensionality of a set of dichotomously-scored items, data were simulated in one, two, and three dimensions for a variety of correlations with the underlying latent trait. Similarity matrices were constructed from these data using three margin-sensitive…
Descriptors: Cluster Analysis, Correlation, Difficulty Level, Error of Measurement
