Publications by authors named "Filip de Fruyt"

The role of childhood activity level in personality development is still poorly understood. Using data from a prospective study following 939 children from age 1.5 to 16.

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The vast majority of studies on trait narcissism have adopted a static unidirectional approach, documenting the mainly detrimental effects of this trait on a variety of work outcomes. The present study contributes to this literature by adopting a novel bidirectional perspective, investigating how trait narcissism shapes and is shaped by our experiences at work. Specifically, this study examines how trait narcissism develops during the first 6 years after the transition from college to work, and how agentic versus communal work demands may either enhance or diminish the development of this trait.

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Only recently, the question whether is a blessing or a curse for job performance has reached the agendas of industrial and organizational (I-O) psychology researchers. Yet, this limited stream of research resulted in inconsistent findings, and only little understanding exists about the role of rater source and mean-level personality in this relationship. Broadly following socioanalytic theory, the present study examined the extent to which self- and other-rated within-person personality variability predicts self- and other-rated job performance, and whether this is moderated by mean-level personality.

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Responding to the need for school-based, broadly applicable, low-cost, and brief assessments of socio-emotional skills, we describe the conceptual background and empirical development of the SENNA inventory and provide new psychometric information on its internal structure. Data were obtained through a computerized survey from 50,000 Brazilian students enrolled in public school grades 6 to 12, spread across the entire State of São Paulo. The SENNA inventory was designed to assess 18 particular skills (e.

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Research has shown that vocational interests are important predictors of a number of life outcomes. Therefore, understanding individuals' vocational interests can also help to explain and predict their attitudes, behavior, and motives. The goal of the present study was to examine changes in vocational interests over time and explore whether these changes could be partially explained by employees' interactions with their work environments.

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Objectives: Contemporary research on the impact of dental rehabilitation scarcely focuses on the role of personality and social relationships in QoL related to dental implant treatment. To overcome biases related to evaluation with self-reports, descriptions provided by informed external observers are recommended.

Aims: To investigate the impact of implant-supported rehabilitation on quality of life and social participation taking into account patient's personality.

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We build on a novel model of personality [PersDyn] that captures three sources of individual differences (here applied to neuroticism): (1) one's baseline level of behavior, affect, and cognitions (baseline); (2) the extent to which people experience different neuroticism levels (variability); and (3) the swiftness with which they return to their neuroticism baseline once they deviated from it (attractor strength). To illustrate the model, we apply the PersDyn model to the study of the relationship between neuroticism and emotional exhaustion. In the first study, we conducted a 5-day experience sampling study on 89 employees who reported on their level of state neuroticism six times per day.

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The present study examined structural alignment (prepositional object dative and double object dative) and its prosocial effects in Spanish-English bilinguals (English L2) and native English speakers (English L1). A scripted picture description paradigm in which a confederate and participant alternately described pictures was used. L1 and L2 speakers of English displayed comparable levels of structural alignment.

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Likert-type self-report scales are frequently used in large-scale educational assessment of social-emotional skills. Self-report scales rely on the assumption that their items elicit information only about the trait they are supposed to measure. However, different response biases may threaten this assumption.

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The extent to which a good person-environment (PE) interest fit between student and study program leads to better study results in higher education is an ongoing debate wherein the role of the study program environment has remained inadequately studied. Unanswered questions include: how diverse study programs are in the interests of their student populations, and how this program interest diversity influences study results, in comparison to individual PE fit? The present study addressed these questions in students (N = 4,635) enrolled in open-access university education. In such an open access system, students are allowed to make study choices without prior limitations based on previous achievement or high stakes testing.

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The development and promotion of social-emotional skills in childhood and adolescence contributes to subsequent well-being and positive life outcomes. However, the assessment of these skills is associated with conceptual and methodological challenges. This review discusses how social-emotional skill measurement in youth could be improved in terms of skills' conceptualization and classification, and in terms of assessment techniques and methodologies.

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Personality researchers and clinical psychologists have long been interested in within-person variability in a given personality trait. Two critical methodological challenges that stymie current research on within-person variability are separating meaningful within-person variability from (a) true differences in trait level; and (b) careless responding (or person unreliability). To partly avoid these issues, personality researchers commonly only study within-person variability in personality states over time using the standard deviation (SD) across repeated measurements of the same items (typically across days)-a relatively resource-intensive approach.

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This study investigated whether syntactic mimicry leads to prosocial effects and whether any such effects are modulated by personality traits. Participants and a confederate of the experimenters took turns describing simple scenes. Target scenes could be described using either a prepositional object or a double object dative structure and we tested whether the participants mimicked the structure used by the confederate (Experiments 1A and 2A), whether mimicry of the participant's sentence structure (Experiments 1B and 2B) made the participant act in a more prosocial manner, and whether any such effects vary with Big Five traits.

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In the last decade, there has been increased recognition that traits refer not only to between-person differences but also to meaningful within-person variability across situations (i.e., whole trait theory).

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The construction of the 18REST, a short 18-item inventory to describe students' position on John Holland's RIASEC interest types, is documented. The instrument is meant to be used in large-scale assessment in education and on the labor market, supplementing information on school achievement and social-emotional skills. This research was carried out in Brazil, initially with two independent samples composed by adolescents and adults.

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The dark triad of personality has traditionally been defined by 3 interrelated constructs, defined as Narcissism, Machiavellianism, and Psychopathy. Although the content of each of these constructs is clearly represented in childhood maladaptive trait measures, no studies have jointly addressed the prospective developmental course of this core set of maladaptive characteristics throughout childhood and adolescence. The current study uses latent growth modeling to explore how early dark traits develop over time, relying on a selected set of 6 childhood maladaptive traits that conceptually cover the adult dark triad.

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This study advanced knowledge on charisma by (a) introducing a new personality-based model to conceptualize and assess charisma and by (b) investigating curvilinear relationships between charismatic personality and leader effectiveness. Moreover, we delved deeper into this curvilinear association by (c) examining moderation by the leader's level of adjustment and by (d) testing a process model through which the effects of charismatic personality on effectiveness are explained with a consideration of specific leader behaviors. Study 1 validated HDS charisma (Hogan Development Survey) as a useful trait-based measure of charisma.

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Personality disorders (PDs) are inherently associated with deficits in relating to other people. Previous research has shown consistent negative associations between categorical PD symptoms and relationship satisfaction. The present studies extend on these findings by examining the role of maladaptive traits in a number of ways.

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Whereas several studies have demonstrated that core self-evaluations (CSE)-or one's appraisals about one's own self-worth, capabilities, and competences-relate to job outcomes, less is known about the mechanisms underlying these relationships. In the present study, we address this issue by examining the role of within- and between-person variation in CSE in the relationship between work pressure and task performance. We hypothesized that (a) work pressure relates to task performance in a curvilinear way, (b) state CSE mediates the curvilinear relationship between work pressure and task performance, and (c) the relationship between work pressure and state CSE is moderated by trait CSE.

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Besides the categorical classification of personality disorders (PDs) in Section II of the DSM-5 (American Psychiatric Association, 2013), which has been transferred as such from DSM-IV, Section III provides an alternative model to stimulate further research on the dimensional conceptualization of PDs. In this alternative system, a PD diagnosis is based on 2 essential criteria: impaired personality functioning and the presence of pathological traits. One topic that warrants further research concerns the incremental validity of these 2 components.

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The factor structure and the convergent validity of the Personality Inventory for DSM-5 (PID-5), a self-report questionnaire designed to measure personality pathology as advocated in the fifth edition, Section III of Diagnostic and Statistical Manual of Mental Disorders (DSM-5), are already demonstrated in general population samples, but need replication in clinical samples. In 240 Flemish inpatients, we examined the factor structure of the PID-5 by means of exploratory structural equation modeling. Additionally, we investigated differences in PID-5 higher order domain scores according to gender, age and educational level, and explored convergent and discriminant validity by relating the PID-5 with the Dimensional Assessment of Personality Pathology-Basic Questionnaire and by comparing PID-5 scores of inpatients with and without a DSM-IV categorical personality disorder diagnosis.

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Although large international studies have found consistent patterns of sex differences in personality traits among adults (i.e., women scoring higher on most facets), less is known about cross-cultural sex differences in adolescent personality and the role of culture and age in shaping them.

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