title: Assessing rumination in response to illness: the development and validation of the Multidimensional Rumination in Illness Scale (MRIS).
abstract: The cognitive style of rumination extends existing cognitive models of emotional response to illness. In the absence of a specific measure, we developed the Multidimensional Rumination in Illness Scale (MRIS). In Study 1, an initial 60-item pool was tested, followed by confirmation of the factor structure in Study 2. In Study 1 participants (n = 185) completed the pilot version of the MRIS, then in Study 2 (n = 163) a reduced 41-item model was tested. Study 1: Exploratory factor analysis of a reduced 32-item scale indicated an initial four-factor solution for the MRIS (Intrusion, Brooding, Instrumental, Preventability), with satisfactory internal consistency and stable factor structure across gender. Study 2: Following scale revision, confirmatory factor analysis substantiated the adequacy of a three-factor MRIS structure, and good internal consistency, test-rest reliability, and concurrent and discriminant validity was demonstrated for the MRIS. The MRIS exhibited good psychometric properties in the current sample, providing a comprehensive assessment of the cognitive style of rumination in the context of physical illness.
authors: Centre for Emotional Health, Department of Psychology, Faculty of Human Sciences, Macquarie University, Sydney, NSW, 2109, Australia, hsoo@bigpond.net.au.
authors: H
authors: H
authors: Soo
authors: K A
authors: KA
authors: Sherman
authors: M
authors: M
authors: Kangas
mesh_terms: D000223:Adaptation, Psychological; D000293:Adolescent; D000328:Adult; D000368:Aged; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D055809:Illness Behavior; D008297:Male; D008875:Middle Aged; D010555:Personality Inventory / Q000592:standards*; D015203:Reproducibility of Results; D013850:Thinking; D055815:Young Adult
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