The purpose of the study was to undertake rigorous psychometric testing of theCaringEfficacyScale in a sample ofRegisteredNurses. A cross‐sectional survey of 2000 registered nurses was undertaken. TheCaringEfficacyScale was utilized to inform the psychometric properties of the selected items of theCaringEfficacyScale. Cronbach'sAlpha identified reliability of the data. ExploratoryFactorAnalysis andConfirmatoryFactorAnalysis were undertaken to validate the factors. Confirmatory factor analysis confirmed the development of two factors;Confidence to CareandDoubts and Concerns. TheCaringEfficacyScale has undergone rigorous psychometric testing, affording evidence of internal consistency and goodness‐of‐fit indices within satisfactory ranges. TheCaringEfficacyScale is valid for use in anAustralian population of registered nurses. The scale can be used as a subscale or total score reflective of self‐efficacy in nursing. This scale may assist nursing educators to predict levels of caring efficacy.