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In the analysis of multivariate observations designed to assess subjects with respect to an attribute, a Guttman scale (named after Louis Guttman) is a single (unidimensional) ordinal scale for the assessment of the attribute, from which the original observations may be reproduced. The discovery of a Guttman scale in data depends on their ...
The radex structure, which originated earlier as "a new approach to factor analysis", [14] has been found also in the study of color perception [15] as well as in other domains of research. Faceted SSA has been applied in a wide variety of research areas including value research [16] [17] social work [18] and criminology [19] [20] and many ...
Guttman research interests were in the fields of scale and factor analysis, multidimensional scaling and facet theory. [4] His mathematical and philosophical treatments of Factor analysis are among the important parts of his scientific legacy. His earlier work in scaling analysis produced what has become to be known as the Guttman scale. [5]
The item-total correlation approach is a way of identifying a group of questions whose responses can be combined into a single measure or scale. This is a simple approach that works by ensuring that, when considered across a whole population, responses to the questions in the group tend to vary together and, in particular, that responses to no individual question are poorly related to an ...
the social action model, whose objectives are to recognize the change around a community in order to preserve or improve standards, understand the social action process/model is a conceptualization of how directed change takes place, and understand how the social action model can be implemented as a successful community problem solving tool,
With later developments in psychometric theory, it has become possible to employ direct methods of scaling such as application of the Rasch model or unfolding models such as the Hyperbolic Cosine Model (HCM) (Andrich & Luo, 1993). The Rasch model has a close conceptual relationship to Thurstone's law of comparative judgment (Andrich, 1978), the ...
A Personal practice model (PPM) is a social work tool for understanding and linking theories to each other and to the practical tasks of social work. Mullen [ 1 ] describes the PPM as “the art and science of social work”, or more prosaically, “an explicit conceptual scheme that expresses a worker's view of practice”.
Research on Social Work Practice is a peer-reviewed academic journal that covers research in the field of social work, including community practice, organizational management, and the evaluation of social policies. The journal's editor-in-chief is Bruce A. Thyer (Florida State University College of Social Work).