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Resumen: Rating scales are used to elicit data about qualitative entities (e.g., research collaboration). This study presents an innovative method for reducing the number of rating scale items without the predictability loss. The “area under the receiver operator curve method” (AUC ROC) is used. The presented method has reduced the number of rating scale items (variables) to 28.57% (from 21 to 6) making over 70% of collected data unnecessary. Results have been verified by two methods of analysis: Graded Response Model (GRM) and Confirmatory Factor Analysis (CFA). GRM revealed that the new method differentiates observations of high and middle scores. CFA proved that the reliability of the rating scale has not deteriorated by the scale item reduction. Both statistical analysis evidenced usefulness of the AUC ROC reduction method.
Idioma: Inglés
DOI: 10.1007/s11192-017-2283-4
Año: 2017
Publicado en: SCIENTOMETRICS (2017), 1-13
ISSN: 0138-9130
Factor impacto JCR: 2.173 (2017)
Categ. JCR: INFORMATION SCIENCE & LIBRARY SCIENCE rank: 25 / 88 = 0.284 (2017) - Q2 - T1
Categ. JCR: COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS rank: 44 / 105 = 0.419 (2017) - Q2 - T2
Factor impacto SCIMAGO: 1.125 - Computer Science Applications (Q1) - Social Sciences (miscellaneous) (Q1) - Library and Information Sciences (Q1)

Tipo y forma: Article (Published version)
Área (Departamento): Area Psiquiatría (Dpto. Medicina, Psiqu. y Derm.)

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