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Revista Colombiana de Psiquiatría

Print version ISSN 0034-7450


LAMPREA M, Julio Alejandro  and  GOMEZ-RESTREPO, Carlos. Validity in Scale-testing. rev.colomb.psiquiatr. [online]. 2007, vol.36, n.2, pp.340-348. ISSN 0034-7450.

Scales are of particular importance when the variable or the entity that we pretend to measure is subjective, that is, there is a high degree of variability among its definition and its components. Among the qualities that a measurement instrument must have are its utility, reliability, and validity. Validity allows us to test hypothesis and make inferences about the people being administered with the scale as a measurement instrument. The purpose of this article is to show the importance and the utility of validity in the process of scale-testing. The different classes of validity and their application in a clinical context in order to determine their presence are discussed.

Keywords : Validation studies; measures.

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