Abstract
Psychometrical reliability and validity of a Japanese version of the Grossarth-Maticek Short Interpersonal Reactions Inventory (J-SIRI) were examined in 601 Japanese men and women, mostly aged 40 to 69 years, who visited a clinic for a health checkup. Six subscales (Types 1 to 6) based on the Grossarth-Maticek personality typology had alpha-coefficients > 0.6 except for Types 3 and 6, and testretest reliability > 0.6 except for type 6. A correlation analysis with Eysenck's extraversion, neuroticism, and lie scales showed a similar pattern as reported elsewhere. A factor analysis on all the J-SIRI items identified nine factors, and subscales based on these factors were constructed: ‘lack of control’, ‘repression of emotion’, ‘ambivalence’, ‘having annoyance’, ‘rational coping’, ‘antisocial tendency’, ‘autonomy’, ‘egoism’, and ‘impatience’. Correlation between the J-SIRI-typological- and factor-based-subscales generally agreed with the Grossarth-Maticek theory. Interestingly, lack of control strongly and positively correlated with both Types 1 and 2, and negatively with Type 4, suggesting that the construct may represent a common ‘toxic’ component of proneness to different diseases. Type allocation by the J-SIRI showed a markedly low rate of Type 2 personality among the Japanese sample. The J-SIRI could well be applicable to further epidemiologic or clinical studies.
