A Rasch Rating Scale Analysis of the Presence of Nursing Scale-RN.

The phenomenon of nursing presence encompasses the emotional connection between nurse and patient, and technical skills performed by the nurse. The Presence of Nursing Scale-RN version (PONS-RN) was developed to measure nurses' perceptions of their ability to be present to their patients. This study summarizes the process of re-evaluation of the psychometric properties of the PONS-RN instrument. A sample of 76 registered nurses providing direct patient care responded to the 31-item questionnaire. The Rasch rating scale model was used for assessing construct validity of PONS-RN data. A principal component analysis (PCA) of residuals supported appropriateness of the subscales defined by a 2-dimensional structure. The results of item and person fit analysis, rating scale functioning analysis and reliability analysis have demonstrated that the thirty-one item Presence of Nursing Scale-RN instrument yielded measures with high validity and reliability as two sub-scales.