Key result
While the overall Type D construct showed no actor or partner effects on health outcomes, a female partner's social inhibition was significantly associated with higher depression in males.
Why the study?
While individual personality traits predict health outcomes, the interpersonal effects of a partner's personality on health outcomes had not been examined for Type D personality in romantic couples.
Does Type D personality have actor and partner effects on health outcomes in romantic couples?
Cross-Sectional (n=364)
Does Type D personality have actor and partner effects on health outcomes in romantic couples?
While the overall Type D personality construct did not show dyadic effects, its individual components (negative affect and social inhibition) demonstrated both actor and partner effects on depression and quality of life in romantic couples.
Answers are grounded in this paper and cite their sources.
Social inhibition may link to partner depression in couples; hypothesis-generating and should not yet change practice.
Objective: An individual’s own personality traits are powerful predictors of their health outcomes (actor effects). However, the effect of personality on health may also occur at an interpersonal level, whereby the personalities of people close to the individual also affect his or her health outcomes (partner effects). Our objective was to examine the actor and partner effects of Type D personality on health in romantic couples for the first time.Design: Cross-sectional questionnaire-based study (N = 364), consisting of 182 romantic couples from the general population (mean age = 35.7 years).Main outcome measures: Each participant completed self-report measures of Type D personality (DS14), health behaviours (GPHB), mood (DASS-21) and quality of life (WHOQOL-BREF).Results: Data were analysed using the Actor-Partner Interdependence Model (APIM). The APIM showed no actor or partner effects of the overall Type D construct. However, there were actor effects of negative affect for both males and females on depression and quality of life, a male actor effect of social inhibition on quality of life, and a female partner effect of social inhibition on depression.Conclusions: These findings suggest that there are both actor and partner effects of the Type D components on some health outcomes.
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Williams et al. (2019) conducted a cross-sectional in General population (romantic couples) (n=364). Type D personality was evaluated on Female partner effect of social inhibition on male depression (β 0.15, p=<0.05). While the overall Type D construct showed no actor or partner effects on health outcomes, a female partner's social inhibition was significantly associated with higher depression in males.
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