An experiment by Cohen and Horn purporting to test Eysenck's theory of extraversion is criticized on the following grounds: (a) unsuitable sample, (6) lack of proper experimental control, (c) failure to choose appropriate parameter values, and (rf) improper theoretical formulation. It is argued that the results throw little light on the nature of extraversion-introversion nor on the theory of c...

Over 5000 senior managers attending a structured assessment centre completed three tests (Revised NEO Personality Inventory, NEO-FFI; the Myers Briggs Type Indicators, MBTI; the Fundamental Interpersonal Relations Orientation, FIRO-B). Given their rank and responsibilities they were categorised as Non-Managers or specialists, Middle Managers and Senior Managers (Manager of Managers or Leaders)....

Previous research has documented cross-cultural differences in personality traits, but the origins of those differences remain unknown. The authors investigate the possibility that these cultural differences can be traced, in part, to regional differences in the prevalence in infectious diseases. Three specific hypotheses are deduced, predicting negative relationships between disease prevalence...

The assumption that everyone wants to be happy is prevalent among psychologists and laypeople alike. The present investigation suggests that motives for happiness are not consistent across individuals or contexts. Three studies demonstrate that preferences for happiness vary as a function of trait extraversion and situational demands. When anticipating an effortful task that requires increased ...

This study examined the relationship between music preference and extraversion on complex task performance in a sample of 34 college students from a small, Christian, liberal arts university. Separated into two groups of high and low extraversion, these 34 participants were invited to participate in the experimental phase of the study. For the experimental phase, each participant experienced th...

The objective of this study was to investigate the link between the Eysenck Personality Questionnaire (EPQ) scores and depressive symptomatology with reasoning performance induced by a task including valid and invalid Aristotelian syllogisms. The EPQ and the Zung Depressive Scale (ZDS) were completed by 48 healthy subjects (27 male, 21 female) aged 33.5 ± 9.0 years. Additionally, the subjects e...

We report the psychometric structure of a Croatian translation of the Eysenck Personality QuestionnaireRevised (short-form), its correlations with psychological distress (General Health Questionnaire-30), its heritability, and personality–psychological distress genetic correlations. The setting is a large ( 1000), family-based sample of men and women from an isolated Croatian island. The neurot...

Most studies reflect dementia caregivers usually sustain higher levels of burden compared to other caregivers. However, they do not consider variability within the caregiver, such as personality traits. The purpose of this study was to examine the influence of extraversion and neuroticism on dementia caregiver burden. A cross-sectional descriptive study was conducted with 33 caregivers looking ...

Epilepsy is one of the most common neurological disorders with a prevalence in the general population is three percent. The present study was correlational type. Statistical population of present study was all epilepsy patients of Esfahan city that 120 Temporal Lobe Epilepsy patients were selected as sample study in Alzahra hospital and epilepsy department of Masih. For data collection we used ...