Abstract
BACKGROUND: Sensory processing sensitivity is the capacity to detect and interpret external and internal stimuli, which varies significantly among individuals. The Highly Sensitive Person Scale (HSPS) is a widely used tool for measuring this personality trait. To extend this research to children and adolescents, the Highly Sensitive Child Scale (HSCS) was developed. PARTICIPANTS AND PROCEDURE: This study focused on adapting and psychometrically analyzing a 12-item Spanish version of the HSCS for use in adults (HSCS-A). This version was administered to 372 adults aged 18 to 75. The Spanish 27-item HSPS was applied to analyze convergent validity. RESULTS: The confirmatory factor analysis (CFA) confirmed that the three-factor structure of the test had the best fit indices in the Spanish sample, which was composed of three subscales: Ease of Excitation; Low Sensory Threshold; and Aesthetic Sensitivity. Internal consistency values (α/ω > 0.8) indicate that this Spanish version of the HSCS-A is adequate to measure environmental sensitivity. Positive and significant bivariate correlations for convergent validity demonstrated moderate and strong relationships between HSCS-A and HSPS-27 dimensions and the general factor of sensitivity (r = .83, p < .001). CONCLUSIONS: This study produced results consistent with recent research on the measurement of environmental sensitivity. The Spanish version of the HSCS for use in adults appears to be a reliable tool for measuring sensitivity across the life cycle.