Classroom context and climate are inherently classroom-level (L2) constructs, but applied researchers sometimes--inappropriately--represent them by student-level (L1) responses in single-level models rather than more appropriate multilevel models. Here we focus on important conceptual issues (distinctions between climate and contextual variables;…

To empirically investigate language learning in relational and cultural settings, the authors developed and administered the Ecological Language Learning and Academic Success scale to an ethnically diverse sample of 269 urban high school students who speak a language other than English at home. Exploratory factor analysis revealed a four-factor…

Although some research has examined the factorial nature of the Multidimensional Aptitude Battery (MAB), none has tested hypotheses relevant to both oblique and orthogonal models via confirmatory factor analysis. Thus, in this investigation, a series of models was tested, which compared the model fit of both oblique/higher order models against a…

Abrami and d'Apollonia dispute previous findings of the multidimensionality of students' evaluations of teaching effectiveness, but their analysis has several weaknesses, particularly in the failure to distinguish between exploratory and confirmatory factor analysis. Support for the multidimensional perspective remains strong. (SLD)

This article describes the development and psychometric assessment of a multidimensional, domain-specific Career Locus of Control Scale (CLOC) designed for use with adolescent school pupils engaged in the career development and decision-making process. A 47-item version was administered to 743 school pupils, age 15 or 16 years evenly split between…

Multidimensional scaling (MDS) and exploratory and confirmatory factor analyses were compared in the assessment of the dimensionality of data sets, using sets generated to be one-dimensional or two-dimensional and differing in degree of interdimensional correlation and number of items defining a dimension. (SLD)

Examination of a test's internal structure can be used to identify what domains or dimensions are being measured, identify relationships between the dimensions, provide evidence for hypothesized multidimensionality and test score interpretations, and identify construct-irrelevant variance. The purpose of this research is to provide a…

Academic psychology has long been composed of two disciplines, one experimental and one correlational. These two disciplines each developed their own method of studying structure in data: multidimensional scaling (MDS) and factor analysis. Both methods use similar kinds of input data, proximity measures on object pairs. Both represent the object…

Reexamines a 49-year-old study of P technique applied to a psychotherapy patient with a recurrent physical symptom. Explores dimensions of psychotherapeutic change as well as the context for the recurrent symptom. Illustrates the contributions from applying the P technique to psychotherapy research, to psychosomatic medicine, and to personality…

This article reports on two studies that used three different samples (N = 644) to construct and validate a multidimensional measure of managerial coaching skill. The four dimensions of coaching skill measured were Open Communication, Team Approach, Value People, and Accept Ambiguity. The two studies assessed the context adequacy, dimensionality,…

The model of cognitive ability proposed by John B. Carroll is described and its implications for education traced. The Carroll model is unique in that it is based on datasets reanalyzed by standard procedures. The variables and factors established through factoring were used to construct the three-stratum Carroll model. (SLD)

A multidimensional item response theory (IRT) model for polytomously scored items, based on the graded response model and using the normal ogive, is developed; and an EM algorithm that may be used to estimate the parameters of the model is also discussed. The model is illustrated through a simulation study in which the polytomous item responses of…

Limitations of the confirmatory factor analysis conducted by H. W. Marsh to demonstrate the multidimensionality of a rating form to assess student evaluation of teaching effectiveness are discussed. A secondary analysis suggests that dimensionality is not stable across solutions and a global factor can be retrieved. (SLD)