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Özdemir, Hasan Fehmi; Toraman, Çetin; Kutlu, Ömer – Turkish Journal of Education, 2019
No matter how strong the theoretical infrastructure of a study is, if the measurement instruments do not have the necessary psychometric qualities, there will be a question of trust in interpreting the findings, and it will be inevitable to make wrong decisions with the results. One of the important steps in scale development/adaptation studies is…
Descriptors: Correlation, Matrices, Construct Validity, Likert Scales
Lei, Wu; Qing, Fang; Zhou, Jin – International Journal of Distance Education Technologies, 2016
There are usually limited user evaluation of resources on a recommender system, which caused an extremely sparse user rating matrix, and this greatly reduce the accuracy of personalized recommendation, especially for new users or new items. This paper presents a recommendation method based on rating prediction using causal association rules.…
Descriptors: Causal Models, Attribution Theory, Correlation, Evaluation Methods
Goff, Peter; Salisbury, Jason; Blitz, Mark – Wisconsin Center for Education Research, 2015
Initiatives to increase leadership accountability coupled with efforts to promote data-driven leadership have led to widespread adoption of instruments to assess school leaders. In this paper we present a decision matrix that practitioners and researchers can use to facilitate instrument selection. Our decision matrix focuses on the psychometric…
Descriptors: Comparative Analysis, Measures (Individuals), Feedback (Response), Psychometrics
Rushton, J. Philippe; Cvorovic, Jelena; Bons, Trudy Ann – Intelligence, 2007
To examine whether the Roma (Gypsy) population of Serbia, like other South Asian population groups, average lower than Europeans on "g", the general factor of intelligence, we tested 323 16- to 66-year-olds (111 males; 212 females) in three different communities over a two-year-period on the Raven's Colored and/or Standard Progressive…
Descriptors: Cognitive Ability, Foreign Countries, Intelligence, Ethnic Groups
Tikoo, Mohan – International Journal of Mathematical Education in Science and Technology, 2002
Several authors have found many Pythagorean triple preserving matrices in recent years. The purpose of this note is to show that all these matrices, and in particular the results published in Deshpande's 2001 paper are special cases of the earlier results obtained by Palmer, Ahuja and Tikoo.
Descriptors: Correlation, Matrices, Mathematics Education, Validity
Wolfle, Lee M.; Ethington, Corinna A. – 1985
The purpose of this paper is to examine the validity of regression estimates when skewed dichotomous scales are used as independent variables. When Pearson product-moment correlations are used to measure zero-order associations involving dichotomous variables, the resulting coefficients underestimate the true associations. As a result, using…
Descriptors: Correlation, Estimation (Mathematics), Matrices, Multiple Regression Analysis
Allen, Nancy L.; Dunbar, Stephen B. – 1988
A recurring problem in educational research is how to account for non-random selection that has restricted the range of the variables of interest in correlational analyses. Several expressions due to H. Pearson (1903) and presented in matrix notation by D. N. Lawley (1943-44) are commonly used in selection settings to adjust for samples chosen on…
Descriptors: Computer Simulation, Correlation, Error of Measurement, Matrices

Hubert, Lawrence J.; Baker, Frank B. – Multivariate Behavioral Research, 1978
The strategy for investigating convergent and discriminant test validity, known as the multitrait-multimethod matrix, is investigated. A nonparametric significance testing procedure is suggested and demonstrated. (JKS)
Descriptors: Correlation, Hypothesis Testing, Mathematical Models, Matrices

Sawyer, Robert N.; And Others – Educational and Psychological Measurement, 1979
High intercorrelations among the six subtests of the Pictorial Test of Intelligence raise questions regarding the construct validity of the instrument. A factor analysis was performed. A single factor with stable factor loadings emerged. (Author/JKS)
Descriptors: Correlation, Factor Analysis, Intelligence Tests, Matrices
Lambert, Michael J.; DeJulio, Steven S. – 1974
The relationship between two diverse but commonly used psychotherapy process rating scales was determined by correlating therapist statements classified via the Hill Interaction Matrix with statements rated on the dimensions of empathy, respect, genuineness, and specificity. Results suggest these measures share significant common variance. Empathy…
Descriptors: Correlation, Counseling, Interaction Process Analysis, Matrices

Schmitt, Neal – Applied Psychological Measurement, 1978
Path analyses of two multitrait-multimethod matrices are used as examples of the kind of information afforded by application of the technique. It is concluded that the technique should be of considerable aid to researchers who want to evaluate the convergent and discriminant validity of their measures. (Author/CTM)
Descriptors: Correlation, Critical Path Method, Factor Analysis, Goodness of Fit
Rim, Eui-Do – 1975
A stepwise canonical procedure, including two selection indices for variable deletion and a rule for stopping the iterative procedure, was derived as a method of selecting core variables from predictors and criteria. The procedure was applied to simulated data varying in the degree of built in structures in population correlation matrices, number…
Descriptors: Analysis of Variance, Comparative Analysis, Correlation, Factor Analysis
Curtis, Ervin W. – 1976
The optimum weighting of variables to predict a dependent-criterion variable is an important problem in nearly all of the social and natural sciences. Although the predominant method, multiple regression analysis (MR), yields optimum weights for the sample at hand, these weights are not generally optimum in the population from which the sample was…
Descriptors: Correlation, Error Patterns, Factor Analysis, Matrices

Smith, I. Leon; Singer, Steven – Educational and Psychological Measurement, 1977
The construct validity of four measures of reflection-impulsivity was examined using a multitrait-multimethod procedure on sample of six to twelve year old educable mentally retarded children. The results indicate a minimal level of construct validity. (Author/JKS)
Descriptors: Conceptual Tempo, Correlation, Elementary Education, Elementary School Students
Beasley, T. Mark; Leitner, Dennis W. – 1994
The use of stepwise regression has been criticized for both interpretive misunderstandings and statistical aberrations. A major statistical problem with stepwise regression and other procedures that involve multiple significance tests is the inflation of the Type I error rate. General approaches to control the family-wise error rate such as the…
Descriptors: Algorithms, Computer Simulation, Correlation, Error of Measurement
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