Resumen

ALZUGARAY, Carolina; GARCIA, Felipe E.; REYES, Alejandro  y  ALVAREZ, Rodolfo. PSYCHOMETRIC PROPERTIES OF A SHORT FORM OF THE EVENT RELATED RUMINATION INVENTORY IN CHILEAN POPULATION AFFECTED BY STRESSFUL EVENTS. Ajayu [online]. 2015, vol.13, n.2, pp.183-198. ISSN 2077-2161.

The Event Related Rumination Inventory (ERRI) is an instrument designed to evaluate the intrusive and deliberated repetitive thoughts after an important stressor. The aim of this study is to analyze their psychometric properties in Chilean population exposed to different kind of stressors. The instrument was applied to 281 adult persons, inhabitants of Concepción, Chile, who recognized had lived a stressful event the last 3 years. Through the result of an exploratory factorial analysis, the scale was reduced from 20 elements of the original scale (10 intrusive rumination and 10 deliberate rumination) to 12 items (7 intrusive rumination and 5 deliberate rumination). This brief version showed high intern consistency for the total scale and each sub scale. In the other hand, showed construct validity, by finding both factors in the factorial analysis, and evidence of criterion validity, by relating both factors positively with the subjective severity of the event and by showing that deliberate rumination predicted posttraumatic growth and intrusive rumination predicted posttraumatic symptoms. The results indicate that the ERRI is a useful instrument to research and evaluate the rumination process related to a stressful event in Chilean population.

Palabras clave : posttraumatic growth; repetitive thought; rumination; posttraumatic symptom; subjective severity; trauma.

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