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Updated: Aug 8, 2026

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning
Published on: August 29, 2025
[Validation: reliable instruments needed. Attitude scale and an opinion poll]
Luis Fraile Calle1, María José Bueno Núñez, María Josefa Flores Sánchez
1Hospital Universitario de Salamanca.
Abstract:
The use of the scientific method in research and investigation in nursing requires avoiding subjectivity at all times. Professionals obtain data by means of instruments which must be operative, valid and reliable. The authors develop and verify two instruments: a nine question opinion poll which uses tests and retests, having a 93-40% concordance proportion. A Likert type attitude scale, applying the "t" in Student to 59 initial propositions, obtaining a definitive scale having 7 positive items and 7 negative ones which gave a 95% confidence level of statistical meaning for a bilateral test and which had 22 degrees of liberty. This study took place using a pilot group of 43 nurses, it was a practical shop exercise on research in nursing occurred in the Hospital, organized by the Nursing Administration and taught by the group coordinator.
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