In this longitudinal study, we investigated the factor structure and stability of early-life temperament in a German sample, using three measures developed within Rothbart's psychobiological approach. Temperament was measured using the Infant Behavior Questionnaire Revised (IBQ-R) at the ages of 6 and 12 months, the Early Childhood Behavior…

The primary objective of this study was to examine the five major personality factors and assess the extent of moral intelligence among students at the World Islamic Sciences University. Additionally, the research aimed to identify the predictive capacity of the five major personality factors on moral intelligence. The study involved a sample of…

Perfectionism is a multidimensional personality trait with two higher-order dimensions; perfectionistic strivings and perfectionistic concerns. The purpose of the present study was to explore and evaluate the two-factor model for the first time using three instruments developed to measure perfectionism in sport. In doing so, we (i) assessed the…

In the 21st century, developing resilience and coping skills is crucial for personal progress, a fact underscored by the COVID-19 pandemic. Past research has shown that participation in competitive sports and individual personality traits significantly influence the development of these skills. However, limited studies have explored this in…

The Perfectionism Social Disconnection Model (PSDM) and the Existential Model of Perfectionism and Depressive Symptoms (EMPDS) are promising models of perfectionism and psychopathology. However, research examining suicide ideation within the PSDM is scarce, and no research has examined suicide ideation as an outcome in the EMPDS. Moreover, tests…

The current study aimed to develop, and examine the psychometric properties of, an Arabized Jordanian version of the Big Three Perfectionism Scale (BTPS) which consists of 45 items distributed on 10 first-order factors ("facets") and three higher-order factors (i.e., rigid perfectionism, self-critical perfectionism, and narcissistic…

The present study aimed to explore the association between creativity, intelligence, and personality. The study recruited sixty healthy volunteers in the age range of 20-40 years from Bengaluru city (formerly Bangalore), South India, and administered tests for fluid intelligence (Raven's Standard Progressive Matrices), personality (Big Five…

Unfolding item response theory (IRT) models are important alternatives to dominance IRT models in describing the response processes on self-report tests. Their usage is common in personality measures, since they indicate potential differentiations in test score interpretation. This paper aims to gain a better insight into the structure of trait…

Procrastination on academic tasks is a common problem affecting learning and achievement of university students globally. In Western and developed countries, personality types have been implicated in academic procrastination, but such evidence has not been adduced within the Ghanaian context. This study was therefore conducted to explore the…

The Dark Factor of Personality (D) measures the latent core of antagonistic traits. The present study evaluated the psychometric properties of the Swedish version of the full (D70) and the brief (D16) versions, concerning structural validity, item information, and convergent validity. An online sample (N = 294) was analyzed using CFA (Maximum…

Parental attachment promotes moral maturity in adolescents by improving empathy. Narcissism, one of the three dark personalities, affects both empathy and moral development. However, little is known about how narcissism moderates the influence of parental attachment on moral development in adolescents. A total of 1,574 Chinese middle school…

The effects of the direct and indirect relationships of personality traits on academic performance are shared in this paper. These complex relationships are examined using Structural Equation Modelling (SEM) with reference to the modified Biggs' 3P model. The major findings of the effects of personality traits on academic performance are (1) the…

Objectives: Non-adherence to medication is common in the adult ADHD clinical group. The goal of this pre-registered study was to examine whether the DSM-5 Alternative Model of Personality Disorder (AMPD), generality personality dysfunction (LPFS-BF 2.0) or maladaptive personality traits (PID-5), can predict time to premature discontinuation of…

Perfectionism measures developed in English-speaking populations have become frequently used in many non-English contexts, including in Italy. Establishing structural and measurement equivalence of instruments between Canadian and Italian samples is therefore important in establishing the validity of these concepts and instruments in Italian…

Purpose: Considering that knowledge, skills and behavior can influence sustainability efforts, this study aims to assess which personality traits influence one's sense of feeling connected to nature and presumably make more sustainable choices. The study also explores the situational factors that might pose barriers, despite an individual's…