Biomedical subjects

K V Petrides

Publications and source records attributed to K V Petrides.

7 recordsLinked to original sources

PubMed2006

Patient preferences for medical doctors.

A sample of 395 white, native English-speaking adults were asked to rate eight medical doctors (general practitioners (GPs) and consultants), representing all permutations of the following three attributes: age (<35 versus >50), training location (UK versus Asia) and gender. Approximately half the participants were allocated in a group with a condition involving an intimate type of health problem and the rest in a group with a non-intimate condition. Participants showed a preference for UK-trained doctors, although it was unclear whether this was due to the homogeneous composition of the sample. There were significant two-way interactions involving patient gender and doctor gender in the first case and doctor age and training location in the second. Additional interactions were specific to either the general practitioner or the consultant ratings. Overall, there were more significant effects in general practitioner ratings, suggesting that people de-emphasize their preferences when selecting consultants.

Adult↗

PubMed2005

Explaining individual differences in scholastic behaviour and achievement.

BACKGROUND: This paper presents results from the first wave of a longitudinal study examining the effects of various psychosocial variables on scholastic achievement and behaviour at school. AIMS: The main aim is to investigate the nature and strength of the effects of major individual difference dimensions on important outcome variables at school level, including academic performance, truancy, and antisocial behaviour. SAMPLES: Data were collected from a sample of 901 pupils on verbal ability (as a proxy for cognitive ability), personality traits, and a number of behavioural indices, including academic performance at 14 and 16 years, number of authorized and unauthorized absences, and exclusions from school due to antisocial conduct. METHODS: During the first stage of the study, seven schools participated in all three phases. Teachers administered a questionnaire battery in class according to a detailed protocol. Additional data were collected from school archives. RESULTS: Analysis of the data through multi-group (male and female pupils) structural equation modelling indicated a very strong effect of verbal ability on academic performance. Extraversion and psychoticism were negatively related to academic performance, although their effects were weak and moderated by gender. Verbal ability, extraversion, and psychoticism predicted absenteeism, truancy, and exclusions from school due to disruptive conduct. The latter three were negatively associated with academic performance. CONCLUSIONS: The findings indicate that major individual difference dimensions like verbal ability and personality traits, have a strong influence on important outcome variables at school level, including academic performance, truancy, and antisocial behaviour. Without fully acknowledging the crucial role of individual differences in shaping behaviour and achievement at school, the timely identification of pupils at risk, and the development of effective intervention schemes will be difficult.

Achievement↗

PubMed2005

A cross-cultural investigation into the relationships between personality traits and work values.

Over 500 working individuals from 2 European countries (Great Britain and Greece) participated in a 2-study investigation into the relationships between the Big Five personality factors and individuals' work values. In Study 1 (N = 314), British employees completed the 60-item NEO-Five-Factor Inventory (NEO-FFI; P. T. Costa & R. R. McCrae, 1989) and the Work Values Questionnaire (WVQ; Mantech, 1983), which comprises 37 items measuring intrinsic (e.g., autonomy) and extrinsic (e.g., pay) work values. In Study 2 (N = 216), Greek employees completed a Greek language measure of the Big Five and a translated version of the WVQ. The authors observed a similar factor structure for the WVQ items in both studies. Personality traits, age, and gender explained between 5% and 13% of the variance in the WVQ subscales. As a result of the 2 studies, the authors concluded that there are robust associations between certain personality traits and work values, although they do not clearly follow the intrinsic vs. extrinsic distinction.

Adult↗

PubMed2004

Mapping medical careers: questionnaire assessment of career preferences in medical school applicants and final-year students.

BACKGROUND: The medical specialities chosen by doctors for their careers play an important part in the workforce planning of health-care services. However, there is little theoretical understanding of how different medical specialities are perceived or how choices are made, despite there being much work in general on this topic in occupational psychology, which is influenced by Holland's RIASEC (Realistic-Investigative-Artistic-Social-Enterprising-Conventional) typology of careers, and Gottfredson's model of circumscription and compromise. In this study, we use three large-scale cohorts of medical students to produce maps of medical careers. METHODS: Information on between 24 and 28 specialities was collected in three UK cohorts of medical students (1981, 1986 and 1991 entry), in applicants (1981 and 1986 cohorts, N = 1135 and 2032) or entrants (1991 cohort, N = 2973) and in final-year students (N = 330, 376, and 1437). Mapping used Individual Differences Scaling (INDSCAL) on sub-groups broken down by age and sex. The method was validated in a population sample using a full range of careers, and demonstrating that the RIASEC structure could be extracted. RESULTS: Medical specialities in each cohort, at application and in the final-year, were well represented by a two-dimensional space. The representations showed a close similarity to Holland's RIASEC typology, with the main orthogonal dimensions appearing similar to Prediger's derived orthogonal dimensions of 'Things-People' and 'Data-Ideas'. CONCLUSIONS: There are close parallels between Holland's general typology of careers, and the structure we have found in medical careers. Medical specialities typical of Holland's six RIASEC categories are Surgery (Realistic), Hospital Medicine (Investigative), Psychiatry (Artistic), Public Health (Social), Administrative Medicine (Enterprising), and Laboratory Medicine (Conventional). The homology between medical careers and RIASEC may mean that the map can be used as the basis for understanding career choice, and for providing career counselling.

Adolescent↗

PubMed2004

Estimates of emotional and psychometric intelligence: evidence for gender-based stereotypes.

The authors examined participants' estimates of own and parental psychometric intelligence (IQ) and emotional intelligence (EI). The authors asked 224 participants (82 men, 138 women, 4 people who did not report their gender) to estimate their own and their parents' IQ and EI scores on a normal distribution ranging from 55 to 145 points. The authors hypothesized that men would give higher IQ but lower EI self-estimates than women and that participants, regardless of gender, would rate their fathers as higher on IQ but lower on EI than their mothers. The results confirmed the hypotheses, supporting the view that people perceive psychometric intelligence as a primarily masculine attribute in contrast with emotional intelligence, which they perceive as a primarily feminine attribute. The results also showed that the intensity of the stereotypical perception of EI as a feminine attribute diminished when the authors asked participants to estimate their scores on a range of specific EI facets instead of providing a direct overall self-estimate.

Adult↗

PubMed2003

Exploring issues of personality measurement and structure through the development of a short form of the Eysenck Personality Profiler .

In this article, we develop a revised short form of the original Eysenck Personality Profiler (EPP; H. J. Eysenck & Wilson, 1991). In addition, we address topics of broad theoretical importance such as the recurrent empirical finding of correlations between conceptually orthogonal personality dimensions and the possibility that gender differences in these dimensions are partly spurious. In Study 1 (N = 227), we demonstrate that the existing short form of the EPP (EPP-SF; H. J. Eysenck, Wilson, & Jackson, 1996) provides a poor fit to the data and we develop a revised well-fitting version. In Study 2, we retest this version on an independent new sample (N = 3,374) where it is again found to fit the data well. We show that most of the structural and measurement parameters of the revised EPP-SF are invariant across genders. Structured means analysis indicated a significant gender difference in Psychoticism, with men scoring higher than women, but no differences in Extraversion or Neuroticism. Our discussion focuses on issues concerning personality measurement and structure, including an examination of the role of confirmatory factor analysis in personality research.

Adult↗

PubMed2003

Repressive coping style and positive self-presentation.

OBJECTIVE: This paper reviews 59 studies looking at cognitive, individual differences and physiological correlates of the repressive coping style, as defined by Weinberger, Schwartz, and Davidson (1979). A central aim is to evaluate the relative importance of the anxiety and social desirability components of repression. Thus, the empirical study investigates the relationships between repression and a number of relevant, but hitherto unexamined, constructs, including trait emotional intelligence (trait EI), self-estimated intelligence, functional and dysfunctional impulsivity, and stoicism. It was hypothesized that repressors would score higher than the other three groups on trait EI, self-estimated IQ and functional impulsivity, but lower on dysfunctional impulsivity. METHOD: In total, 259 (174 females) participants from three British universities completed questionnaires measuring the dependent and independent variables. Participants were divided into four groups (truly low anxious, non-defensive/high anxious, defensive/high anxious and repressors) based on their scores on anxiety and social desirability. Analyses (moderated multiple regressions and ANOVAs) were conducted both on the total sample as well as on 'extreme-scoring' individuals. RESULTS: Where there were significant differences, the hypotheses were supported, particularly with respect to trait EI, self-estimated IQ and impulsivity. Using 'extreme-scoring' groups did not effectively change the results. The regressions revealed an absence of significant interactions between anxiety and social desirability. CONCLUSION: Results are discussed in terms of the now replicated effect that repressors present a highly positive and optimistic self-image, despite cognitive and behavioural data suggesting that their coping style is psychologically unhealthy. In addition, it is argued that many findings in the repressive coping style literature can be parsimoniously explained through main effects of anxiety or social desirability alone (i.e., without invoking a construct that combines the two).

Adaptation, Psychological↗