Translation, Cultural Adaptation, and Validation of the Nurse Self-Concept Questionnaire (NSCQ) for Greek Registered Nurses Working in Public Hospitals

Introduction: The Nurse Self-Concept Questionnaire (NSCQ) is a widely used instrument designed to measure nurses’ self-concept across professional domains. Although validated in various countries across the world, showing strong psychometric properties, no Greek version existed prior to this study. Understanding nurses’ self-concept is essential, as it influences job satisfaction, professional performance, and the quality of patient care. Therefore, the development of a valid Greek version is important for both clinical practice and nursing education. Aim: This study aimed to translate, culturally adapt, and validate the NSCQ for use among Greek registered nurses working in public hospitals, following methodological guidelines to ensure accuracy, reliability, and overall applicability within the Greek nursing and healthcare context. Methodology: The present study followed standard cross-cultural validation procedures, including forward–backward translation, expert panel review, and also pilot testing. The final version was administered to 762 registered nurses employed in various public hospitals across Greece. Participants represented diverse regions and hospital departments, ensuring an adequate and representative sample. Exploratory factor analysis (EFA) and reliability testing were performed to assess construct validity and internal consistency. Results: Sampling adequacy was excellent (KMO = 0.91; Bartlett’s χ²(276) = 5123.7, p < .001). The five-factor model demonstrated strong conceptual coherence and accounted for 68.3% of the total variance. Cronbach’s alpha for the total scale was 0.94, indicating excellent reliability. All subscales showed α > 0.85, confirming strong internal consistency. Moderate correlations were found between self-concept and demographic variables such as years of experience (r = .29, p < .01) and education level (r = .22, p < .05). Conclusions: The Greek version of the NSCQ demonstrated strong psychometric properties and is a valid and reliable instrument for assessing nurses’ self-concept in Greek public hospitals. It provides a valuable tool for research, professional development, and improving nursing practice in Greece.