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Dive into the research topics where Shauna C. Kushner is active.

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Featured researches published by Shauna C. Kushner.


Journal of Personality Disorders | 2011

The Hierarchical Structure of the Dimensional Assessment of Personality Pathology (DAPP-BQ)

Shauna C. Kushner; Lena C. Quilty; Jennifer L. Tackett; R. Michael Bagby

Hierarchical personality models have the potential to identify common and specific components of DSM-IV personality disorders (PDs), and may offer a solution for the re-tooling of personality pathology in future versions of the DSM. In this paper, we examined the hierarchical structure of the Dimensional Assessment of Personality Pathology-Basic Questionnaire (DAPP-BQ; Livesley & Jackson, 2009) and the capacity of various trait components at different levels to predict DSM-IV PD symptoms. Participants were 275 psychiatric outpatients and 365 undergraduate students. Goldbergs (2006) bass-ackwards method was used to investigate the hierarchical structure of the DAPP-BQ. The predictive capacity of hierarchy components was assessed. We found that Level 5 of the hierarchy enhanced the capacity of the DAPP-BQ for predicting DSM PD symptoms beyond a four-factor structure, particularly for borderline PD.


Development and Psychopathology | 2014

Viewing relational aggression through multiple lenses: temperament, personality, and personality pathology

Jennifer L. Tackett; Shauna C. Kushner; Kathrin Herzhoff; Avanté J. Smack; Kathleen W. Reardon

Dispositional trait frameworks offer great potential to elucidate the nature and development of psychopathology, including the construct of relational aggression. The present study sought to explore the dispositional context of relational aggression across three dispositional frameworks: temperament, personality, and personality pathology. Participants comprised a large community sample of youth, aged 6 to 18 years (N = 1,188; 51.2% female). Ratings of childrens relational aggression, temperament, personality, and personality pathology traits were obtained through parent report (86.3% mothers). Results showed convergence and divergence across these three dispositional frameworks. Like other antisocial behavior subtypes, relational aggression generally showed connections with traits reflecting negative emotionality and poor self-regulation. Relational aggression showed stronger connections with temperament traits than with personality traits, suggesting that temperament frameworks may capture more relationally aggressive content. Findings at the lower order trait level help differentiate relational aggression from other externalizing problems by providing a more nuanced perspective (e.g., both sociability and shyness positively predicted relational aggression). In addition, there was little evidence of moderation of these associations by gender, age, or age2, and findings remained robust even after controlling for physical aggression. Results are discussed in the broader context of conceptualizing relational aggression in an overarching personality-psychopathology framework.


Assessment | 2013

Delineating Personality Traits in Childhood and Adolescence Associations Across Measures, Temperament, and Behavioral Problems

Jennifer L. Tackett; Shauna C. Kushner; Filip De Fruyt; Ivan Mervielde

The current investigation addressed several questions in the burgeoning area of child personality assessment. Specifically, the present study examined overlapping and nonoverlapping variance in two prominent measures of child personality assessment, followed by tests of convergent and divergent validity with child temperament and psychopathology. Informant report (72.1% mother) was obtained for a community sample of 803 youth (Mage = 11.34 years; 51.6% female). The results revealed strong convergence between two empirically based measures of child personality traits, although some discrepancies were noted. The results from analyses predicting temperament and psychopathology were complex, suggesting that higher order child personality traits account for both shared and unique variance in these constructs, relative to one another. Overall, the current investigation provides a multifaceted contribution to evidence for construct validity of child personality traits and highlights the need for subsequent research in this area.


Assessment | 2012

Diagnostic construct validity of MMPI-2 Restructured Form (MMPI-2-RF) scale scores.

Martin Sellbom; R. Michael Bagby; Shauna C. Kushner; Lena C. Quilty; Lindsay E. Ayearst

In the current investigation, the authors examined the diagnostic construct validity of the Minnesota Multiphasic Personality Inventory–2–Restructured Form (MMPI-2-RF) in a patient sample. All participants were diagnosed via the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I/P). The data set used in this study was composed of 544 patients—67 with bipolar disorder, 407 with major depressive disorder, and 70 with schizophrenia. Multivariate analyses revealed a pattern of mean scale differences among patient groups that was mostly consistent with the prominent features of each diagnostic group; logistic regression analyses identified a number of scales that were strong, unique predictors in the differentiation between pairs of diagnostic groups. The higher order scales (H-O)—the Emotional/Internalizing Dysfunction (EID) and Thought Dysfunction (THD) scales were most useful in differentiating between patient groups. For differentiating bipolar disorder patients from the other diagnostic groups, the Activation (ACT) Specific Problem scale was most useful. Although not all hypothesized scale differences emerged; overall, the pattern of results provides support for the diagnostic construct validity of the MMPI-2-RF scales.


Journal of Personality and Social Psychology | 2016

Thin Slices of Child Personality: Perceptual, Situational, and Behavioral Contributions

Jennifer L. Tackett; Kathrin Herzhoff; Shauna C. Kushner; Nicholas O. Rule

The present study examined whether thin-slice ratings of child personality serve as a resource-efficient and theoretically valid measurement of child personality traits. We extended theoretical work on the observability, perceptual accuracy, and situational consistency of childhood personality traits by examining intersource and interjudge agreement, cross-situational consistency, and convergent, divergent, and predictive validity of thin-slice ratings. Forty-five unacquainted independent coders rated 326 childrens (ages 8-12) personality in 1 of 15 thin-slice behavioral scenarios (i.e., 3 raters per slice, for over 14,000 independent thin-slice ratings). Mothers, fathers, and children rated childrens personality, psychopathology, and competence. We found robust evidence for correlations between thin-slice and mother/father ratings of child personality, within- and across-task consistency of thin-slice ratings, and convergent and divergent validity with psychopathology and competence. Surprisingly, thin-slice ratings were more consistent across situations in this child sample than previously found for adults. Taken together, these results suggest that thin slices are a valid and reliable measure to assess child personality, offering a useful method of measurement beyond questionnaires, helping to address novel questions of personality perception and consistency in childhood.


Child Psychiatry & Human Development | 2015

A Review of the Direct and Interactive Effects of Life Stressors and Dispositional Traits on Youth Psychopathology

Shauna C. Kushner

Stressors and dispositional traits have been implicated in youth psychopathology; however, the direct effects from stressors or traits alone may be insufficient for explaining maladaptive development. Evidence for the impact of stressors and dispositional traits has largely progressed within separate lines of inquiry, resulting in disunited etiological models and variable empirical support. Existing research on the concurrent effects of stressors and traits has also been hindered by several conceptual issues—including mixed evidence for specificity effects, inconsistent operationalization of stressors, and inadequate coverage of dispositional traits across development—making it difficult to draw conclusions across studies. The current review aims to unify these independent lines of inquiry by evaluating prior research according to three theoretical frameworks: (1) additive, (2) diathesis-stress, and (3) social push models. Implications for assessment, prevention, and intervention efforts in clinical child and adolescent psychopathology are discussed.


Comprehensive Psychiatry | 2014

Alexithymia and adult attachment representations: Associations with the five-factor model of personality and perceived relationship adjustment

Graeme J. Taylor; R. Michael Bagby; Shauna C. Kushner; Diane Benoit; Leslie Atkinson

Several studies have demonstrated associations between alexithymia, adult attachment styles, personality traits, and relationship adjustment. Only two studies, however, have explored associations between alexithymia and attachment representations. As part of a larger investigation of maternal and infant attachment, the current study explored this association in a sample of 97 pregnant women; in addition, measures of alexithymia and domains of the five-factor model (FFM) of personality were compared in predicting attachment security, assessed with the Adult Attachment Interview Coherence of Mind mind scale, and perceived relationship adjustment. Alexithymia negatively predicted coherence of mind; the domains of the FFM did not add significantly to the prediction. The Openness-to-Experience domain predicted relationship adjustment better than alexithymia. Contrary to findings from studies that assessed adult attachment styles, coherence of mind was unrelated to relationship adjustment and the FFM. The results suggest that alexithymia does not uniquely predict relationship adjustment beyond the domains of the FFM.


Journal of Affective Disorders | 2016

Therapeutic alliance mediates the association between personality and treatment outcome in patients with major depressive disorder.

Shauna C. Kushner; Lena C. Quilty; Amanda A. Uliaszek; Carolina McBride; R. Michael Bagby

BACKGROUND Patient personality traits have been shown to influence treatment outcome in those with major depressive disorder (MDD). The trait agreeableness, which reflects an interpersonal orientation, may affect treatment outcome via its role in the formation of therapeutic alliance. No published studies have tested this hypothesis in patients with MDD. METHOD Participants were 209 outpatients with MDD who were treated in a randomized control trial. Mediation analyses were conducted to examine the role of therapeutic alliance in the association between pretreatment personality and the reduction of depression symptom severity during treatment. Separate models were estimated for patient- versus therapist-rated therapeutic alliance. RESULTS We found a significant indirect effect of agreeableness on the reduction of depression severity via patient-rated therapeutic alliance. Results were replicated across two well-validated measures of depression symptom severity. Results also partially supported indirect effects for extraversion and openness. Therapist ratings of alliance did not mediate the association between personality and treatment outcomes. LIMITATIONS Patients were recruited as part of a randomized control trial, which may limit the generalizability of results to practice-based clinical settings. Due to constraints on statistical power, intervention-specific mediation results were not examined. CONCLUSIONS These results highlight the importance of personality and the role it plays in treatment process as well as outcome.


Psychological Assessment | 2017

The Impact of Underreporting and Overreporting on the Validity of the Personality Inventory for DSM–5 (PID-5): A Simulation Analog Design Investigation

Sonya Dhillon; R. Michael Bagby; Shauna C. Kushner; Danielle Burchett

The Personality Inventory for DSM–5 (PID-5) is a 220-item self-report instrument that assesses the alternative model of personality psychopathology in Section III (Emerging Measures and Models) of DSM–5. Despite its relatively recent introduction, the PID-5 has generated an impressive accumulation of studies examining its psychometric properties, and the instrument is also already widely and frequently used in research studies. Although the PID-5 is psychometrically sound overall, reviews of this instrument express concern that this scale does not possess validity scales to detect invalidating levels of response bias, such as underreporting and overreporting. McGee Ng et al. (2016), using a “known-groups” (partial) criterion design, demonstrated that both underreporting and overreporting grossly affect mean scores on PID-5 scales. In the current investigation, we replicate these findings using an analog simulation design. An important extension to this replication study was the finding that the construct validity of the PID-5 was also significantly compromised by response bias, with statistically significant attenuation noted in validity coefficients of the PID-5 domain scales with scales from other instruments measuring congruent constructs. This attenuation was found for underreporting and overreporting bias. We believe there is a need to develop validity scales to screen for data-distorting response bias in research contexts and in clinical assessments where response bias is likely or otherwise suspected.


Journal of Aggression, Maltreatment & Trauma | 2015

Child personality moderates associations between parenting and relational and physical aggression

Avanté J. Smack; Shauna C. Kushner; Jennifer L. Tackett

Although negative parenting strategies are a risk factor for relational and physical aggression, research has not previously investigated whether child personality traits moderate the association between negative parenting and relational and physical aggression. This was the aim of this study. Participants were mothers of 368 children (172 males, Mage = 11.61, SD = 0.82). Mothers reported on their parenting practices, child personality traits, and child aggression. Results indicated that 2 child personality traits (extraversion and openness) moderated the relationship between inconsistent discipline and relational aggression. Additionally, agreeableness moderated the relationship between poor monitoring and supervision and physical aggression. Specifically, children low on these personality traits showed the highest levels of aggression in the context of negative parenting. These results highlight the importance of examining child personality as a moderator of parental influences on psychopathology development, and emphasize important distinctions between parenting strategies and physical versus relational aggression outcomes.

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Lena C. Quilty

Centre for Addiction and Mental Health

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Carolina McBride

Centre for Addiction and Mental Health

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