Development and psychometric testing of the care dependence perception questionnaire.

The Scale-Content Validity Index was 0.92. The final 15-item questionnaire was completed by 208 patients admitted to two hospitals. The EFA yielded a two-factor model including a positive and a negative perception of care dependence. Factor score determinacy coefficients, Cronbach's alpha coefficients, composite reliability coefficients and Intraclass Correlations Coefficients yielded satisfactory results confirming internal consistency and stability. The hedonic balance score is also available as a single indicator of subjective well-being. The study provides initial validation of the Care DEeP Questionnaire that can be used by cancer nurses to assess positive and negative patient experiences with care dependence and to personalise and improve their care.