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Updated: May 25, 2026

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning
Published on: August 29, 2025
[Helping relationship skills in nurses: the validation of a measurement instrument]
Rosa Cândida Carvalho Pereira de Melo1, Maria Júlia Paes Silva, Pedro Miguel Dinis Parreira
1Escola Superior de Enfermagem de Coimbra, Coimbra, Portugal. rosamelo@esenfc.pt
Abstract:
Considering the importance of assessing nurses' helping relationship skills, it was necessary to use reliable and context-adapted instruments. Thus, the objective of this study was to assess the psychometric properties of the Helping Relationship Skills Inventory (Inventário de Competências Relacionais de Ajuda, ICRA), by conducting reliability and validity studies to increase the level of confidence or accuracy of the data obtained using this instrument. This quantitative study was conducted on a sample of 690 nurses who worked in six hospitals and eight health centres in Portugal. The results indicate a multidimensional structure of helping relationship skills, divided into four different dimensions (generic, empathetic, communication and contact skills) with a positive correlation between them. Cronbach's alpha for each dimension was higher than .79, showing a good internal consistency of the items within each factor.
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