Construct validity and personality correlates of the Strelau temperament inventory

Strelau's reinterpretation of Pavlov's concept of nervous system properties has gained increasing attention in Western personality research, both with regard to the psychometric properties of the Strelau Temperament Inventory (STI) and with regard to the interrelations between STI and Western personality dimensions. The present study investigated the construct validity of the Strength of Excitation scale by examining its relationship to experimental indices of strength of the nervous system. Secondly, data on the convergence between STI, EPQ, SSS IV, and trait anxiety measures are presented, using German translations of all the questionnaires. The results confirmed the correlation between strength of excitation and a reaction time based measure of strength of the nervous system. A factor analysis on the questionnaire scales identified two factors. Factor I (activity/stimulation seeking) consisted of extroversion, mobility, strength of excitation and the sensation seeking scales whereas Factor II (instability vs control) was composed of anxiety/neuroticism/ psychoticism and strength of excitation/strength of inhibition/social desirability. These findings agree with Eysenck's and Strelau's theoretical predictions regarding the interrelations of Pavlovian properties and Western personality dimensions.     

A factor analysis of the Eysenck personality questionnaire and the Strelau temperament inventory

The relationship of the Eysenck Personality Questionnaire and the Strelau Temperament Inventory was examined. Correlation analyses of test scores and items provided little evidence of an identity between the scales of these tests.     

Relationships between the Eysenck personality questionnaire,Strelau temperament inventory and Freiburger beschwerdenliste gesamtform

A correlational and factor analysis was carried out on test scores for the Eysenck Personality Questionnaire, Strelau Temperament Inventory and Freiburger Beschwerdenliste Gesamtform. Results suggest a convergence between Eysenck's personality factors and Strelau's questionnaire-based measures of neo-Pavlovian nervous system properties, and provide further evidence of a correspondence between these measures and psychosomatic disease.     

The Strelau temperament inventory (STI): Preliminary results in a West German sample

The Strelau Temperament Inventory (STI) was administered to a West German sample consisting of 108 men and 73 women. Distributions for the three scales [Strenght of Excitation (SE), Strenght of Inhibition (SI) and Mobility of Nervous Processes (M)] did not deviate from a normal distribution; men scored higher on the SE scale than women. Split-half reliabilities and coefficients of internal consistency were sufficiently high for SE (0.89 and 0.84) and SI (0.83 and 0.82), but not for M (0.76 and 0.68). E was found to be positively related to SE and M, N turned out to be negatively related to SE and SI. The P and L scales were highly correlated with SI. The results indicate that the SE and SI scales can be recommended in their present form for use in West Germany, whereas the M scale needs revision. The interrelations between STI and EPQ scales are in line with Eysenck's theoretical considerations.     

Further validation of the psychopathic personality inventory among offenders: personality and behavioral correlates.

The Psychopathic Personality Inventory (PPI; Lilienfeld & Andrews, 1996) is a relatively new self-report measure that has shown considerable promise as an index of psychopathic traits in both nonoffender and offender samples. The present study examined the construct validity and predictive utility of the PPI by examining its association with theoretically relevant scales of the Personality Assessment Inventory (PAI; Morey, 1991) among 60 male prison inmates, and its ability to predict institutional misbehavior in an expanded sample (n = 89). As expected, correlations with the PAI scales were highest for the Antisocial Features (ANT) and Aggression (AGG) scales (rs = .68 and .57, respectively). The PPI also predicted various forms of nonviolent and physically aggressive disciplinary infractions significantly better than chance (point biserial correlations ranging from .26 to .37).     

Some personality correlates of using eBay

The use of eBay by 102 American undergraduate students was not associated with competitiveness, locus of control scores, or money attitude scores.     

Psychological correlates of the three variables in the Strelau Temperament Inventory

Most of the validational studies concerning the Strelau Temperament Inventory (STI) have focused on the Strength of Excitation scale and on a limited number of domains. This study was designed to examine the STI validity in new domains or with new tools, emphasizing the contribution of each of the three STI scales. We focused on health orientation and behaviour, stress susceptibility, emotional reactions, life events, and personal problems. The subjects were 91 healthy adults of both genders. Also information about smoking (health behaviour), white blood cell count and erythrocyte sedimentation rate (physiological stress measures) was available. Regression and discriminant analyses showed that the STI scales were related neither to smoking nor to the Cognitive Orientation of Health but only to three of its components. Furthermore, the STI scales were related to the verbal but not to the physiological stress measures; and to the negative emotions but hardly to the positive ones. Finally, they were related to measures of life events and personal problems. The relations were mostly modest but broadened the validational basis of the STI, indicating that, although all three scales have to be considered, each has a unique contribution.     

Mother's personality and infant temperament

We examined if perfectionism and the perception of being an anxious person were associated with more negative infant temperament ratings by the mothers. 386 women (mean age = 30.08; standard deviation = 4.21) in their last trimester of pregnancy completed the Multidimensional Perfectionism Scale (MPS), the Beck Depression Inventory-II (BDI-II) and an item about their perception of being or not an anxious person. The Portuguese version of the Diagnostic Interview for Genetic Studies and the Operational Criteria Checklist for Psychotic Illness were used to generate diagnoses according to DSM-IV and ICD-10 criteria. After delivery, women completed eight items of the Difficult Infant Temperament Questionnaire (developed by our team) and filled in, again, the BDI-II and were interviewed with the DIGS. Women with depression (DSM-IV/ICD-10) and probable cases of depression using different cut-offs adjusted to Portuguese prevalence (BDI-II), in pregnancy and postpartum, were excluded. The Difficult Infant Temperament Questionnaire showed to have factorial validity and internal consistency. There was a statistically significant negative correlation between perfectionism total scale score and item 6 from the temperament scale (“is your baby irritable or fussy?”). Considering MPS 3-factor solution found for pregnancy there was also a statistically significant negative correlation between SOP and the same item. Women with low SOP differed from those with medium and high SOP in the total temperament score. Moreover, the low SOP group differed from the medium group on items three and four scores. There were no significant associations with SPP, which is the dimension more closely associated with negative outcomes. There was an association between anxiety trait status (having it or not) and scoring low, medium or high in the infant temperament scale. The proportion of anxious vs. non-anxious women presenting a high score on the infant temperament scale was higher (24.2% vs. 12.9%). Linear regressions showed that SOP (low vs. medium/high) offered a significant contribution to the prediction of total temperament scale score and items 3 and 4 scores, but a logistic regression did not confirm trait anxiety as a significant predictor of mother's infant temperament perception. Concluding, a major result concerns the fact that higher levels of adaptive perfectionism (i.e. SOP) are associated (and predict) a less negative view of their infant's temperament. These results on the effect of mother's anxiety and perfectionism on the child temperament perception might have treatment implications. As perfectionism is not always maladaptive, some of its positive features could be used to enhance women's self-efficacy/sense of parental competence in their role as mothers and positive affect towards their infants. Also, antenatal interventions aimed at minimising anxiety could help to optimise infant temperament outcomes, which could, eventually, also, lead to subsequent maternal and infant mental health better outcomes.     

Some personality correlates of self-rated academic success.

Using subjects' own ratings of their academic performance, a group of american university students were divided into academically successful (n = 312) and unsuccessful (n = 170) subgroups. A comparison of mean scores of the two groups on nine personality variables convered by Eysenck's PEN Inventory and Lanyon's Psychological Screening Inventory showed that academic success, as rated by subjects themselves, is associated with low psychoticism, neuroticism, and discomfort but high extraversion and defensiveness.