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Source
| Educational and Psychological… | 20 |
Author
| Vegelius, Jan | 20 |
| Edvardsson, Bo | 2 |
| Janson, Svante | 1 |
| Janson, Svante, | 1 |
Publication Type
| Journal Articles | 10 |
| Reports - Research | 9 |
| Guides - Non-Classroom | 1 |
| Numerical/Quantitative Data | 1 |
| Reports - Descriptive | 1 |
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Peer reviewedJanson, Svante,; Vegelius, Jan – Educational and Psychological Measurement, 1980
The value of the phi coefficient cannot, in general, be uniquely determined from the G index. G is more suitable than the phi coefficient as a measure of similarity between individuals, because phi is too unstable over item reflection. (Author/RL)
Descriptors: Comparative Analysis, Mathematical Formulas, Measurement Techniques
Peer reviewedVegelius, Jan – Educational and Psychological Measurement, 1979
A new measure of similarity between persons applicable in Q-analysis is proposed. It allows assumptions of non-orthogonality between the items, across which the similarity is computed. The similarity measure may also be applied in an R-analysis. (Author/JKS)
Descriptors: Correlation, Item Analysis, Q Methodology, Test Construction
Peer reviewedVegelius, Jan – Educational and Psychological Measurement, 1979
The computer program WEIGAN makes the weighted G analysis available for computer users. The input and output of the program are described. (Author/JKS)
Descriptors: Computer Programs, Correlation, Factor Analysis, Item Analysis
Peer reviewedVegelius, Jan – Educational and Psychological Measurement, 1979
The G index is a measure of similarity between pairs of dichotomized items. The G index is generalized here to the case where items are trichotomized. (JKS)
Descriptors: Correlation, Item Analysis, Nonparametric Statistics, Technical Reports
Peer reviewedVegelius, Jan – Educational and Psychological Measurement, 1977
A new type of scale, called the bipolar ordinate scale, is defined with assumptions slightly stronger than those of the normal ordinal scale. The scale would be used for affective type measurement. The logic behind the scale and examples are presented. (Author/JKS)
Descriptors: Attitude Measures, Correlation, Measurement Techniques, Psychometrics
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