The aims of the present study were to revise the Korean version of Jungian Type Survey/the Gray-Wheelwrights Test(JTS/GW) which was drafted in 1988 and to test the reliability and validity of a revised Korean version of JTS/GW.
Based on the Psychological Typology conceptualized by C.G. Jung, the 147preliminary item instrument has been constructed through the translation of JTS/GW(81 items) and the addition of new 66 items in 1988. 129 items from the preliminary items have been included and analyzed for the revision of the Korean version of JTS/GW, and they were administered to 479 subjects ; 285 Females and 194 males.
228 among 479 subjects completed the Korean versions of Myers-Briggs Type Indicator(MBTI), Eysenck Personality Questionnaire(EPQ), and Minnesota Multiphasic Personality Inventory(MMPI) for the pilot test of the construct validity of JTS/GW(78 items).
The revised Korean version of JTS/GW in the current study selected 78 items through the factor analysis, and was applied to 338 subjects for the test of the reliability and validity of the revised Korean version of JTS/GW.
The results are as follows : Cronbach´s coefficients(N=286) are 0.84(IE : Introversion-Extraversion), 0.74(US : Intuition-Sensation), and 0.69(TF : Thinking-Feeling). Split-half reliability coefficients corrected by the Spearman-Brown formula are 0.84(I), 0.75(U), & 0.73(T). The test-retest reliability coefficients(N= 49) are 0.91(I), 0.71(U), & 0.66(T). The Pearson´s product-moment correlation coefficients(N=46) were calculated to determine relationship between JTS /GW and MBTI, and the results are 0.82(I), 0.55(U), & 0.63(T). The correlation coefficients between Introversion of JTS/GW and other measures of introversion-ex-
traversion are 0.82(1 of MBTI), - 0.89(Extraversion of EPQ), & 0.79(Social Introversion of MMPI).
The results of this research indicate that the psychometric properties of the revised Korean version of JTS/GW are at least as reliable as other widely used tests. Further repetitious test of the reliability and validity of the current questionnaire should be required.
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