title: A test of the empirical network surrounding affective instability and the degree to which it is independent from neuroticism.
abstract: Affective instability (AI) is as a central component of a number of psychiatric disorders, but it has received relatively little empirical attention as an individual construct. The goal of the current study was to study AI in the context of a broad empirical network of relevant constructs and compare its pattern of relations with those generated by trait neuroticism, both of which were assessed using both self- and informant reports. In a sample of 343 college students, the present study examined the correlations generated by an AI factor (derived from a factor analysis of relevant scales) in comparison to neuroticism in relation to personality and etiological and outcome variables. An exploratory factor analysis revealed a one-factor structure of AI related to the experience of intense and changeable negative affect and subsequent physical and behavioral consequences. The correlations generated by self- and informant reports of AI with these external criteria were almost perfectly correlated with the correlations demonstrated by self- and informant reports of neuroticism. Self- and informant reports of AI generated a pattern of results consistent with its role in a number of psychological disorders that are associated with substantial impairment. The current data suggest that AI might be best conceived of as largely overlapping with neuroticism rather than as a distinct construct.
authors.affiliation: Department of Psychology, University of Georgia.
authors.forename: Jessica
authors.initials: J
authors.lastname: Maples
authors.affiliation: Department of Psychology, University of Georgia.
authors.forename: Joshua D
authors.initials: JD
authors.lastname: Miller
authors.affiliation: Department of Psychology, University of Georgia.
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Hoffman
authors.affiliation: Department of Psychology, University of California.
authors.forename: Sheri L
authors.initials: SL
authors.lastname: Johnson
mesh_terms: D000328:Adult; D000342:Affective Symptoms / Q000145:classification*; D001008:Anxiety Disorders / Q000145:classification*; D005260:Female; D006801:Humans; D008297:Male; D000075384:Neuroticism; D010551:Personality / Q000145:classification*; D055815:Young Adult