Psychometric Evaluation of the Nursing Outcome "Pain: Adverse Psychological Response" in Patients With Chronic Pain.

Purpose: To culturally adapt into Spanish and validate the outcome "Pain: Adverse psychological response" (code 1306) in patients with chronic pain.

Methods: A three-stage study was conducted: (a) translation and cultural adaptation, (b) content validation, and (c) clinical validation.

Findings: The Spanish version of the outcome "Pain: Adverse psychological response" has high content validity ( 0.91). Fourteen indicators were organized into two factors. This version offers good reliability in both inter-observer agreement (kappa = 0.72) and internal consistency (alpha = 0.89).

Conclusions: The Spanish adaptation of "Pain: Adverse psychological response" is a reliable and valid instrument for the measurement of emotional aspects of chronic pain.

Implications For Nursing Practice: The Spanish adaptation of this outcome offers nurses a set of structured indicators to measure the adverse emotional impact of chronic pain.