Descriptor
| Computer Software | 1 |
| Data Analysis | 1 |
| Factor Analysis | 1 |
| Item Analysis | 1 |
| Probability | 1 |
| Rating Scales | 1 |
| Sample Size | 1 |
| Test Reliability | 1 |
| Test Validity | 1 |
Source
| Educational and Psychological… | 1 |
Author
| Aiken, Lewis R. | 1 |
Publication Type
| Journal Articles | 1 |
| Numerical/Quantitative Data | 1 |
| Reports - Research | 1 |
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Peer reviewedAiken, Lewis R. – Educational and Psychological Measurement, 1985
Three numerical coefficients for analyzing the validity and reliability of ratings are described. Each coefficient is computed as the ratio of an obtained to a maximum sum of differences in ratings. The coefficients are also applicable to the item analysis, agreement analysis, and cluster or factor analysis of rating-scale data. (Author/BW)
Descriptors: Computer Software, Data Analysis, Factor Analysis, Item Analysis
