The measurement of extroversion: A comparison of the Eysenck Personality Inventory and the Eysenck Personality Questionnaire

1981 ◽  
Vol 20 (4) ◽  
pp. 279-284 ◽  
Author(s):  
Thomas Rocklin ◽  
William Revelle
Keyword(s):  
Personality Inventory ◽  
Eysenck Personality Questionnaire ◽  
Personality Questionnaire ◽  
Eysenck Personality Inventory

A note on ‘Smoking, personality and reasons for smoking’

1983 ◽  
Vol 13 (2) ◽  
pp. 447-448 ◽  
Author(s):  
H. J. Eysenck
Keyword(s):  
Personality Traits ◽  
Personality Inventory ◽  
Eysenck Personality Questionnaire ◽  
Personality Questionnaire ◽  
Eysenck Personality Inventory ◽  
Scale Scores ◽  
Similar Vein

In their recent paper on smoking and personality, McManus & Weeks (1982) administered the Eysenck Personality Questionnaire (EPQ) and questionnaires regarding smoking to 100 subjects, and calculated correlations between the personality traits measured (psychoticism, extraversion, neuroticism, and lie scale scores) and smoking. Contrary to expectation, there was no correlation with extraversion (E), only slight correlation with neuroticism, but a significant correlation with psychoticism (P). They argue that the lack of correlation with E is due to the changed contents of the scale, which has been changed from earlier versions, such as the Eysenck Personality Inventory (EPI), by the omission of some impulsiveness items. They quote a paper by Rocklin & Revelle (1981) which argues in a similar vein.

The Eysenck Personality Inventory Scores in a Group of Psychiatric Patients

1972 ◽  
Vol 120 (559) ◽  
pp. 681-682 ◽  
Author(s):  
Abraham Verghese ◽  
Annamma Abraham
Keyword(s):  
Clinical Practice ◽  
Psychiatric Patients ◽  
Two Dimensions ◽  
Personality Inventory ◽  
Personality Questionnaire ◽  
Eysenck Personality Inventory ◽  
Psychosomatic Research

The Eysenck Personality Inventory (E.P.I.) was developed by Eysenck and Eysenck (1964) to measure two dimensions of personality—extraversion (E) and neuroticism (N). This personality questionnaire has been extensively used in clinical practice and psychosomatic research. In our own department we have been using the E.P.I. as a tool in some psychosomatic investigations, which have been reported in various journals (Verghese, 1970, 1971; Verghese et al. (1971a), (1971b).

Assessing Extraversion and Emotional Stability in Adolescents: Development and Validation of a Questionnaire

2007 ◽  
Vol 101 (2) ◽  
pp. 435-447 ◽  
Author(s):  
Andreu Vigil-Colet ◽  
Urbano Lorenzo-Seva ◽  
Fabia Morales-Vives ◽  
Eliseo Chico
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Factor Structure ◽  
Emotional Stability ◽  
Personality Inventory ◽  
Eysenck Personality Questionnaire ◽  
Personality Questionnaire ◽  
Confirmatory Factor ◽  
Development And Validation

A reduced version of the Five-factor Personality Inventory, which only considers two of the five original dimensions, was constructed to assess Extraversion and Emotional Stability especially for a sample of 581 adolescents. This used Items 6, 9, 11, 19, 21, 39, 41, 46, 54, 59, 61, 66, 84, 89, 91, and 99. Exploratory and confirmatory factor analysis showed that the factor structure of the questionnaire is acceptable, and both scales are reliable and correlated with similar measures as The Eysenck Personality Questionnaire–Revised.

Correlation Between the Rorschach Test Coded and Interpreted According to the Comprehensive Exner System and the Eysenck Personality Inventory

2005 ◽  
Vol 27 (1) ◽  
pp. 63-79 ◽  
Author(s):  
Antonella De Carolis ◽  
Stefano Ferracuti
Keyword(s):  
Human Movement ◽  
Personality Inventory ◽  
Eysenck Personality Questionnaire ◽  
Weighted Sum ◽  
Rorschach Test ◽  
Eysenck Personality Inventory ◽  
Color Response ◽  
Exner Comprehensive System ◽  
Neuroticism Scale ◽  
Rorschach Variables

The relationships between the Rorschach test and the self-reported personality questionnaires are an important and unresolved issue in confirming structural and clinical hypotheses. In a sample of healthy volunteers (n = 47) we conducted a study to investigate the correlation between the Italian version of the Eysenck Personality Questionnaire (Eysenck Personality Inventory, EPI) and some selected Rorschach variables defined according to the Exner Comprehensive System. The results showed that the Extroversion Scale of the EPI corresponds with the calculated difference between the Human Movement responses and the Weighted Sum of the Color response (M-WSumC, r = –.42, p < .01), the Weighted Sum of Color responses (WSumC, r = .40, p < .01) as a single variable, and the Sum of Shading responses (SumShd, r = .29, p < .05), but had no relationship with the Human Movement responses. None of the hypothesized Rorschach variables showed a significant correlation with the Neuroticism scale of the EPI. Furthermore, the Psychoticism scale of the EPI was negatively correlated with the Rorschach index Zsum (r –.33, p < .05). Finally, the comparison between the subgroups defined by the Erlebnistypus categories showed that Rorschach Extratensive subjects scored higher on the Extroversion scale of the EPI than Introversive (Mann-Whitney U = 30.5, p < .01) or Ambitent subjects (Mann-Whitney U = 76, p < .01). These results indicate that Rorschach’s concept of Erlebnistypus as a holistic dimension and Eysenck’s construct of Extroversion-Introversion are sufficiently homogeneous for psychometric assessment, but the single determinants of Rorschach responses have no correspondence with the EPI scores.

Geophysical Variables and Behavior: XXIV. Seasonal Factors in Extraversion

1985 ◽  
Vol 56 (1) ◽  
pp. 3-8 ◽  
Author(s):  
David P. Fourie
Keyword(s):  
Seasonal Difference ◽  
Eysenck Personality Questionnaire ◽  
Personality Questionnaire ◽  
Small Magnitude ◽  
Period Analysis ◽  
Eysenck Personality Inventory ◽  
Seasonal Factors ◽  
And Behavior ◽  
Post Hoc ◽  
The Relationship

In a recent study by Fourie a post hoc observation was made that summer-born subjects obtained a higher mean extraversion score on the Eysenck Personality Inventory than winter-born subjects, with spring- and autumn-born subjects scoring neatly between the two extremes. The present study was designed to replicate this finding and to investigate the relationship between extraversion and mean day temperature around the time of birth. The Eysenck Personality Questionnaire was applied to 350 women, all born in the same 12-mo. period. Analysis of variance performed on the extraversion scores verified the hypothesis of a seasonal difference. Correlations between extraversion scores and various day temperatures and mean day temperatures, though of small magnitude, were without exception positive and significant, indicating a definite relationship between extraversion and day temperature around the time of birth.

Testing the Assumption of Uncorrelated Errors for Short Scales by Means of Structural Equation Modeling

2014 ◽  
Vol 35 (4) ◽  
pp. 201-211 ◽  
Author(s):  
André Beauducel ◽  
Anja Leue
Keyword(s):  
Structural Equation Modeling ◽  
Negative Correlation ◽  
Structural Equation ◽  
Error Score ◽  
Classical Test Theory ◽  
Test Theory ◽  
Equation Modeling ◽  
Eysenck Personality Questionnaire ◽  
Personality Questionnaire ◽  
True Score

It is shown that a minimal assumption should be added to the assumptions of Classical Test Theory (CTT) in order to have positive inter-item correlations, which are regarded as a basis for the aggregation of items. Moreover, it is shown that the assumption of zero correlations between the error score estimates is substantially violated in the population of individuals when the number of items is small. Instead, a negative correlation between error score estimates occurs. The reason for the negative correlation is that the error score estimates for different items of a scale are based on insufficient true score estimates when the number of items is small. A test of the assumption of uncorrelated error score estimates by means of structural equation modeling (SEM) is proposed that takes this effect into account. The SEM-based procedure is demonstrated by means of empirical examples based on the Edinburgh Handedness Inventory and the Eysenck Personality Questionnaire-Revised.

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