Typology Test Validity

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In my research on the reliability and validity of the Jung Typology Test, I found that the Jung Typology Test has been validated on a test sample of 1000 individuals, ranging in ages from 18 to 70 (Humanmetrics, 2016). The validity statement did not provide information on the gender or ethnicity of the individual respondents, which could affect the test validity. The majority of the reliability correlation coefficients (including Test-Retest and Split-Half) are over .70, indicating an average to good level. In regards to type frequency, ISFJ (Introverted, Sensing, Feeling, Judging) held the highest estimate at 13.8% and INFJ (Introverted, Intuitive, Feeling, Judging) was the lowest at 1.5%—it is considered among the rarest types in the general
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