EPQ correlates of the personality deviance scale

New patients at a psychiatric day hospital were asked to complete a set of questionnaires, including the Eysenck Personality Questionnaire, and the Personality Deviance Scale of Bedford and Foulds. This paper reports on the resulting correlations between the variables measured by these two inventories. The findings broadly replicate those of Bedford and Foulds with the Eysenck Personality Inventory and the Personality Deviance Scale. The Neuroticism scale of the EPQ was found to correlate with all of the PDS scales, and particularly highly with intropunitiveness. As regards the Psychoticism Scale of the EPQ, this was found to correlate highly with extrapunitiveness, but not with intropunitiveness or dominance. It is concluded that there appears to be some relationship between P and this hostility measure of extrapunitiveness, a finding somewhat in contradiction to recent conclusions by Forbes based on his study of a normal sample.     

Evaluating the Invariance of the Factor Structure of the EPQ–R–N Among Adolescents

We examined the factor structure of the Neuroticism scale of the Eysenck Personality Questionnaire (EPQ–R–N; S. B. G. Eysenck, Eysenck & Barrett, 1985) and its factor invariance across sex and racial/ethnic groups in a sample of 1,979 adolescents. Using confirmatory factor analyses, we compared a hierarchical model to previous models of the EPQ–R–N and to single-factor and 3-factor structures. The hierarchical factor structure in which a general factor coexists with 3 group factors (depression, social concerns, and worry) was superior to alternative models. The general factor accounted for more than 60% of the variance in EPQ–R–N total scores and was invariant across sex and ethnicity. The 3 group factors varied across ethnicity and sex. We discuss the implications of these findings for conceptualization and assessment of neuroticism using the EPQ–R–N.     

National differences in personality: India and England

This study reports comparisons between results on the Eysenck Personality Questionnaire (EPQ) obtained from 558 male and 636 female Indian Ss; the comparison group of the original standardized English Sample (Eysenck and Eysenck, 1975). Factor analysis of item correlations showed close correspondence between the factors extracted in the two samples, with indices of factor comparisons being well in excess of 0.97. The reliabilities in the Indian sample were only marginally lower than in the original English standardization group. Some items from the original EPQ did not load on the hypothesized factors; they were substituted by the extra items contained in the 101-item version of the EPQ used in India. The Indian data showed no sex differences with respect to extraversion; females were found to score higher on the Neuroticism and also slightly higher on the Lie scale than the males. The Lie scores for both males and females being quite high suggests a consistent trait of conformity in operation. It was concluded that the organization of personality in India is sufficiently similar to that in England to make national comparisons feasible since identical dimensions underlie the personalities of Indian and English Ss.     

The Relationship Between the Myers-Briggs Type Indicator and the Eysenck Personality Questionnaire Among Adult Churchgoers

A sample of 377 adult churchgoers completed the Myers-Briggs Type Indicator (Form G) and the Eysenck Personality Questionnaire. The data demonstrate that the measures of introversion-extraversion proposed by the two instruments are highly correlated, that there is a moderate correlation between the EPQ psychoticism scale and the MBTI measures of judging and perceiving, and that the MBTI scales map in quite a complex way onto the three-dimensional model of personality proposed by the EPQ.     

中国大学生艾森克人格问卷测试因素结构之探讨

本文旨在检验艾森克人格理论对中国人的适合性,探明艾森克人格问卷(成人)的结构。经对2311名大学生艾森克人格问卷的作答数据做验证性因素分析,艾森克人格理论未能得到证明。使用全息项目因素分析方法对EPQ进行因素分析,得出神经质、外向性、友善因素、诚实因素、任性因素和严谨因素六个因素。该方法较好地克服了经典线性因素分析高估维度数。低估因素负荷等缺陷。     

Correlations of extraversion,impulsivity and sociability with sensation seeking and MBTI-introversion

Three samples of undergraduates completed the Eysenck Personality Inventory (EPI), Sensation Seeking Scale (SSS), Myers-Briggs Type Indicator-Introversion scale (MBTI-I), and, in one sample, the Eysenck Personality Questionnaire (EPQ). As predicted, the correlation of EPI-Soc with MBTI-I was significantly and consistently larger than that for EPI-Imp; however, the tendency for EPI-Imp to have a larger correlation than EPI-Soc with SSS was not significant. Impulsivity and Sociability exhibited similar correlations with EPI-E, but Sociability had a significantly higher correlation with EPQ-E than did Impulsivity. Results demonstrate both the differential utility of Impulsivity and Sociability and the evolving nature of the EPI and EPQ measures of Extraversion.     

The comparability of the JEPI, JEPQ and EPQ among 15- to 16-yr olds

One hundred and ninety-one 15- to 16-yr olds completed the Junior Eysenck Personality Inventory (JEPI), the Junior Eysenck Personality Questionnaire (JEPQ) and the Eysenck Personality Questionnaire (EPQ). In terms of the internal consistency of the test items, and the statistical independence of the scales, the EPQ emerges as the most satisfactory measure of personality dimensions in this age group.     

Assertiveness,aggressiveness and Eysenck's personality variables

The relationship of scores on the Interpersonal Behavior Survey (IBS) and the Eysenck Personality Questionnaire (EPQ) were studied to investigate the relationship of assertiveness and aggressiveness to more basic dimensions of personality. This relationship was studied in two samples. Sample one consisted of 12 psychiatric inpatients, 67 college students and 69 state prison inmates. Sample two was made up of 50 psychiatric inpatients. The correlational results were highly similar in both samples. Significant negative correlations were found between the EPQ Neuroticism scale and IBS assertiveness scales; significant positive correlations were found between the EPQ Neuroticism and Psychoticism scales and the IBS aggressiveness scales, and significant positive correlations were obtained between the EPQ Extraversion scale and the IBS assertiveness scale. An ANOVA revealed a significant Neuroticism by Extraversion interaction on the IBS General Assertiveness, Rational scale. Neurotic introverts were found to have especially large deficits in assertive behavior. The results are generally consistent with Eysenck's theory of personality.     

The itemetric properties of the Eysenck personality questionnaire: A reply to Helmes

Helmes (1980) presented results demonstrating that the purported factors of the Eysenck Personality Questionnaire (EPQ) did not emerge in a sample of 191 undergraduates. However, this conclusion was reached using incorrect factor analytic methodology. Helmes not only used an idiosyncratic version of Eysenck's original methodology but also failed to take into account recent evidence on factor analytic procedures. To illustrate the remarkable clarity of the EPQ factors, the results from three samples of data are presented here. The sample data are diverse, taken from three different populations: 1198 British adults, 406 British students and 116 Thai students. The consistency of various psychometric parameters adds further evidence justifying the existence of these factors.     

Psychoticism and visual recognition thresholds

This paper presents data which are of relevance in assessing the validity of the P scale of the Eysenck Personality Questionnaire (EPQ; Eysenck and Eysenck. 1975). Frith (1979) suggested that a defect in inhibitory selective mechanisms constitutes the cognitive disorder underlying the positive symptomatology of schizophrenia: hallucinations, delusions and thought disorder. A priming paradigm was used to measure the operation of inhibitory mechanisms. It was predicted that, if psychosis is conceptualized as a pathological exaggeration of the features characterizing the trait of psychoticism then high P scorers should show a reduced inhibition effect. This prediction was confirmed, a negative correlation was found between P and the size of the inhibition effect. No correlation with IQ or other personality variables from the EPQ was found.     

Disposition towards hallucination,gender and EPQ scores: a brief report

The Launay-Slade Hallucination Scale (LSHS-A) and the Eysenck Personality Questionnaire (EPQ) were given to 204 male and female undergraduate students. Female students scored significantly higher than male students on the LSHS-A. No relationship was found between the P, E or L scales of the EPQ and the LSHS-A. However, a significant positive correlation was found between the N scores on the EPQ and scores on the LSHS-A. This correlation could not be accounted for by sex differences on the N scale.     

The factor structure of the Eysenck Personality Profiler in Russia

One hundred and seventy seven males and 399 females completed a translated short version of the Eysenck Personality Profiler (EPP-S). Two hundred and ninety four Ss also completed the EPQ. By means of item analysis, further shortening of the EPP was achieved, while retaining adequate psychometric characteristics and convergent validity with EPQ scales. Confirmatory factor analysis (CFA) confirmed the Eysenck hierarchical model of personality with three basic dimensions and showed stability of the EPP factor structure across genders and sub-samples of different origin. However, CFA showed that only E and P were independent, while N was correlated with E and P.     

The item structure of the Eysenck Personality Questionnaire across method and culture

Since its publication, the Eysenck Personality Questionnaire (EPQ) has endured much criticism of its psychometric properties. As the most stringent of these attacks has derived from hierarchical factor analytic studies it is reasonable to ask whether the inadequacies reported accrue to the questionnaire itself or to the problematic features of factor analysis as a method. A further feature of empirical studies that are critical of the EPQ is that they are, by-and-large, based upon non-British samples. As the EPQ was constructed in Britain it is quite conceivable that cultural artifacts are responsible for the inconsistent findings of Canadian and American researchers. This paper offers a brief review of some of the critical research and reports a study in which the item structure of the EPQ is explored by non-metric multidimensional scaling techniques upon a sample of Irish adolescents. The MDS configuration was then compared with the higher order factor analytic results of American researchers to examine invariance across method. A clear item structure emerges supporting the Eysencks' theoretical model although items of the P scale are less homogenous than would be ideal for a psychometric tool.     

The relationship between personality,ability to draw a person and the content of drawings

Seventy boys (aged 11 and 12) participated in an experiment designed to investigate the relationship between personality, drawing ability and the content of drawings. They were first asked to complete the Junior EPQ (Eysenck and Eysenck, 1973) then to draw a person and finally to draw anything at all. Three independent raters assessed the quality and bizarre content of the ‘person’ drawings; both drawings were then considered together and the judges rated the extent to which they were aggressive, imaginative, comic and sexually daring. The main finding was a significant correlation between ‘Psychoticism’ and bizarre content.     

Structural and functional equivalence of the Eysenck Personality Questionnaire within and between countries

The question was examined as to whether scores at the individual level and scores at the country level on the four scales of the Eysenck Personality Questionnaire (EPQ) have the same psychological meaning. Using data of 24 countries, it was found that the EPQ has different factorial structures at both levels. Both the Lie scale and the Psychoticism scale were shown to jeopardize cross-level equivalence. For further exploration of the meaning of the EPQ scales within countries and between countries country-level correlations were calculated with a variety of country characteristics such as Gross National Product, political indices, religiosity, Hofstede's measures, and subjective well-being. Significant findings for 38 countries included correlations of the EPQ scales with Hofstede's Masculinity, Diener's Subjective Well-Being, religiosity, the number of deaths in a country due to political violence, and bribery. The most striking finding was a substantial negative correlation of the Lie scale with Gross National Product and other wealth-related indices.     

A psychometric investigation of the eysenck personality questionnaire (revised) and its relationship to the I.7 impulsiveness questionnaire

The present study investigated the psychometric properties of the Eysenck Personality Questionnaire-Revised (EPQ-R) and the I.7 Impulsiveness Questionnaire. 307 Ss (215 female, 92 male) completed the EPQ-R and the I.7. Scale means and the standard deviations were calculated, scale reliability tested, scale scores intercorrelated and the resulting matrices were factor-analysed. The items from the EPQ-R and the I.7 were submitted to an item factor analysis. The results of the present study were quite similar to those reported by Eysenck, Eysenck and Barrett (1985) for the EPO-R and those reported by Eysenck, Pearson, Easting and Allsopp (1985) for the I.7. It was concluded that the EPQ-R represents an improvement on the 90-item EPQ and that the I.7 represents an adequate and reliable measure of Impulsiveness, Venturesomeness and Empathy. The relationships between the EPQ-R factors and the I.7 factors are also discussed.     

社区服刑人员心理健康状况调查

以探讨社区服刑人员的心理特点为目的,以康健街道社区服刑人员为范围,采用艾森克人格问卷(EPQ)及SCL-90症状自评量表对社区服刑人员的人格、心理健康方面进行调查。结果发现社区服刑人员在总体上虽基本属于正常人群在其人格特征仍与罪犯人群所特有的特点具有少量共性;其心理健康也普遍存在一定问题;同时,证明了社区服刑人员的人格与心理健康有一定的联系,其结果可以在今后的社区心理矫正工作中加以关注和应用。     

Locus of control in three behavioural domains: Factor structure and correlates of the “spheres of control” scale

The “Spheres of Control” (SOC) scale and the extraversion, neuroticism and lie scales from the Eysenck Personality Questionnaire (EPQ) were administered to a large sample (N = 576) of male subjects in the age range 30–65 yr. The factor structure of the SOC was examined by testing the goodness-of-fit of a series of confirmatory factor models using LISREL. The results supported Paulhus' three-dimensional formulation of perceived control in the personal, interpersonal and socio-political behavioural domains, but the personal and interpersonal domains were found to be closely related. There was also evidence that the internally-worded SOC items discriminated the three domains of control more clearly than the externally-worded items; the latter showed high loadings on a general factor. The SOC scales showed only moderate reliabilities.Relations between the SOC and EPQ measures were examined by means of two canonical correlation analyses. These analyses demonstrated: (i) that SOC personal and interpersonal control scales were positively related to extraversion and negatively related to neuroticism, but control in the socio-political domain was not predicted by the Eysenck measures; and (ii) that the general-factor effects apparent in SOC responses were related to neuroticism and, to a lesser extent, to the lie scale. These results are discussed in relation to the rationale underlying the development of the SOC scale and other relevant literature.     

Personality and Spirituality: Christian Prayer and Eastern Meditation Are Not the Same

A random sample of 1,033 adults in an Australian community survey completed a form containing the abbreviated Revised Eysenck Personality Questionnaire together with questions about the practice of prayer and Eastern meditation. While prayer was associated with low psychoticism scores, Eastern meditation was associated with high psychoticism scores.