Melbourne School of Psychological Sciences - Research Publications
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ItemPositive and meaningful lives: Systematic review and meta-analysis of eudaimonic well-being in first-episode psychosis(WILEY, 2021-10)BACKGROUND: First-episode psychosis typically has its onset during adolescence. Prolonged deficits in social functioning are common in FEP and yet often variance in functioning remains unexplained. Developmental psychology frameworks may be useful for understanding these deficits. Eudaimonic well-being (EWB), or positive self-development, is a developmental psychology construct that has been shown to predict mental health outcomes across multiple populations but has not been systematically reviewed in FEP. AIM: Our aim was to systematically review the evidence for: the predictors of EWB, the effectiveness of EWB interventions and to examine the quality of this research in FEP. METHODS: Selected studies measured either composite or components of EWB. A systematic search produced 2876 abstracts and 122 articles were identified for full screening which produced 17 final papers with 2459 participants. RESULTS: Studies comprised six RCTs, eight prospective follow-up studies and three case-controlled studies. Self-esteem and self-efficacy were the most commonly measured components. A meta-analysis of RCTs revealed no statistically significant effect of interventions on self-esteem. The extant research indicates that character strengths may be associated with higher EWB. Self-esteem may be lower in FEP compared with age matched controls but not different from ultra-high risk patients. Self-esteem appears to be associated with poorer insight and improved therapeutic alliance. Significant problems with both external and internal validity of reviewed studies were apparent. CONCLUSIONS: The hypotheses that lowered EWB is a risk factor for both onset of FEP and for poorer functional outcomes warrant further investigation. There is currently no evidence for effective interventions for EWB in FEP.
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ItemNo Preview AvailableNeuroticism may not reflect emotional variability(NATL ACAD SCIENCES, 2020-04-28)Neuroticism is one of the major traits describing human personality, and a predictor of mental and physical disorders with profound public health significance. Individual differences in emotional variability are thought to reflect the core of neuroticism. However, the empirical relation between emotional variability and neuroticism may be partially the result of a measurement artifact reflecting neuroticism's relation with higher mean levels-rather than greater variability-of negative emotion. When emotional intensity is measured using bounded scales, there is a dependency between variability and mean levels: at low (or high) intensity, it is impossible to demonstrate high variability. As neuroticism is positively associated with mean levels of negative emotion, this may account for the relation between neuroticism and emotional variability. In a metaanalysis of 11 studies (N = 1,205 participants; 83,411 observations), we tested whether the association between neuroticism and negative emotional variability was clouded by a dependency between variability and the mean. We found a medium-sized positive association between neuroticism and negative emotional variability, but, when using a relative variability index to correct for mean negative emotion, this association disappeared. This indicated that neuroticism was associated with experiencing more intense, but not more variable, negative emotions. Our findings call into question theory, measurement scales, and data suggesting that emotional variability is central to neuroticism. In doing so, they provide a revisionary perspective for understanding how this individual difference may predispose to mental and physical disorders.