Background: The Communication Skills Scale (CSS) is an instrument for evaluating communication skills in different health professionals; however, a differential analysis of their psychometric properties by professions and specific scales has not been performed. Therefore, the aim of the present study was to analyze the psychometric properties of the CSS and develop T-scores for the scale for nursing professionals.
Material and methods: We developed an instrumental study to analyze the psychometric properties of the CSS, evaluating its items, reliability, evidence of validity and its internal structure. For this purpose, a battery of questionnaires was administered, which included the CSS, the General Self-efficacy Scale and the Specific Self-efficacy Scale for communication in difficult situations.
Results: The questionnaires were applied to 692 nurses. Discrimination indices >0,30 were obtained in all items. The confirmatory factor analysis of the two models (with four oblique factors and adding a second-order factor) revealed that all items had adequate factor loadings and the fit indices of both models were good. The internal consistency was 0,88 for the total scale and between 0,70 and 0,77 for the dimensions. A positive relationship between communication skills and general and specific self-efficacy was obtained.
Conclusion: The CSS displayed appropriate psychometric properties (item analysis, internal structure, reliability and evidence of validity), relating the communication skills of nurses with their general and specific self-efficacy in communication in difficult situations.