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Educational and Psychological… | 20 |

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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 reviewed

Vegelius, Jan – Educational and Psychological Measurement, 1975

The program can compute a great number of different correlation and other statistical measures. The user is free to select among the measures and also among the variables that are read by the program. When a particular set of variables has been treated in the prescribed way, a new set may follow together with new measure definitions. (Author)

Descriptors: Computer Programs, Correlation, Matrices, Statistical Analysis

Peer reviewed

Vegelius, Jan – Educational and Psychological Measurement, 1975

The program can perform any one of those nonparametric statistical methods that is mentioned in Sidney Siegel's classical work on the subject. The user is free to select among the methods and also among the samples that are read by the program. When a particular set of samples has been treated in the prescribed way, a new set may follow together…

Descriptors: Computer Programs, Input Output, Nonparametric Statistics

Peer reviewed

Vegelius, Jan – Educational and Psychological Measurement, 1982

The possibility of using a Q-analysis also for nominal data is discussed, using the J-index as a measure of similarity between persons. An example is given when ten persons sorted 16 playing cards into as many groups as they wished. A Q-analysis of these data gave a natural two-dimensional structure. (Author/BW)

Descriptors: Correlation, Factor Analysis, Mathematical Models, Statistical Analysis

Peer reviewed

Vegelius, 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

Peer reviewed

Vegelius, Jan – Educational and Psychological Measurement, 1976

Existing generalizations of the G Index of Agreement of two subjects on n dichotomous items are discussed and an alternative index for ordinal scales with fixed neutral points is proposed. The proposed index can be used as a normalized scalor product and for both item and person similarities. (JKS)

Descriptors: Matrices, Psychometrics

Peer reviewed

Vegelius, Jan; Edvardsson, Bo – Educational and Psychological Measurement, 1976

The theoretical background underlying the mathematical development of different measures of the degree of attitudinal polarization applicable to bipolar questions and a Fortran IV computer program that provides a rapid means for calculation of four of those measures are presented. (Author/JKS)

Descriptors: Attitude Measures, Computer Programs, Statistical Analysis

Peer reviewed

Vegelius, Jan – Educational and Psychological Measurement, 1981

The G index is a measure of the similarity between individuals over dichotomous items. Some tests for the G-index are described. For each case an example is included. (Author/GK)

Descriptors: Hypothesis Testing, Mathematical Formulas, Mathematical Models, Nonparametric Statistics

Peer reviewed

Janson, Svante; Vegelius, Jan – Educational and Psychological Measurement, 1980

A general discriminant analysis method, based on the E-correlation coefficient concept is introduced, and separates the various subgroups by using Euclidean spaces. The G-analysis, the weighted G analysis and the WHIDD analysis are special cases of the method. (Author/RL)

Descriptors: Comparative Analysis, Discriminant Analysis

Peer reviewed

Vegelius, Jan; Edvardsson, Bo – Educational and Psychological Measurement, 1979

The G index and its generalizations in the six basic factor analytic designs are discussed. G should be used if there is no mutual direction of all the variables. G should also be used if the scale center is more suitable as a reference point than the mean value. (Author/CTM)

Descriptors: Correlation, Factor Analysis, Nonparametric Statistics, Q Methodology

Peer reviewed

Vegelius, Jan – Educational and Psychological Measurement, 1980

One argument against the G index is that, unlike phi, it is not a correlation coefficient; yet, G conforms to the Kendall and E-coefficient definitions. The G index is also equal to the Pearson product moment correlation coefficient obtained from double scoring. (Author/CP)

Descriptors: Correlation, Mathematical Formulas, Test Reliability

Peer reviewed

Vegelius, Jan; And Others – Educational and Psychological Measurement, 1980

The Weighted H Index Delegate Discriminant Analysis method (WHIDD-analysis) is presented. It is rather similar to Holley's G-analysis, but does not utilize any component analysis and is thus cheaper and simpler to use. The WHIDD-analysis uses the weighted H-index as the E-correlation coefficient. (Author/BW)

Descriptors: Discriminant Analysis, Mathematical Formulas

Peer reviewed

Janson, 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 reviewed

Vegelius, 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 reviewed

Vegelius, 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 reviewed

Vegelius, Jan – Educational and Psychological Measurement, 1978

G analysis is a type of discriminant analysis. A generalization of the G analysis to cases where variables are on an interval or ordinal scale is described. The placement system used in the description is distance-based, but other systems may also be applied. (Author/JKS)

Descriptors: Discriminant Analysis, Measurement Techniques, Statistical Analysis

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