NANDA-I and NOC Linkages for Six Psychosocial Nursing Diagnoses: A Validation Study

The aim of this study was to validate the diagnostic content and the NANDA-I and NOC linkages for six psychosocial nursing diagnoses. This multicentre, descriptive, cross-sectional validation study followed Fehring's model. Expert nurses in nursing methodology and standardised nursing languages in Spain participated, with expertise criteria based on academic level and clinical, teaching, and research experience in the fields of nursing methodology and standardised nursing languages. This study adhered to the STROBE guidelines for cross-sectional studies. Eighty-seven professionals participated in the diagnostic content validation phase, and 57 in the NANDA-I and NOC linkages validation phase. The content validity indices of the six diagnoses ranged from 0.74 to 0.84, all considered valid. All 84 proposed defining characteristics were valid, with 42 scoring ≥0.8. Thirty-two linkages between diagnoses and NOC outcomes were proposed, all valid, with mean scores between 0.73 and 0.98. Each diagnosis was linked to 5-6 NOC outcomes, comprising 26 main outcomes and 6 supplementary outcomes. Overall coverage rates for each diagnosis ranged from 68.42% to 100%. All linkages between defining characteristics and NOC outcome indicators were validated. The six selected psychosocial diagnoses, their defining characteristics, and the proposed linkages between diagnoses and outcomes have been validated. The validation of linkages between NOC indicators and nearly all major defining characteristics of these six psychosocial diagnoses will make it possible to enhance diagnostic accuracy and enable continuous assessment of the effects of nursing interventions on the clinical progression of these diagnoses.