Estimates of reliability and validity for the Murphy-Meisgeier Type Indicator for children



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The Murphy-Meisgeier Type Indicator for Children (MMTIC) is a self-report instrument designed to identify Jung's psychological type in elementary age children. One hundred-sixty sample items were administered to approximately 1,000 third, fourth, and fifth grade students in a suburban, middle-class school district. An item analysis was completed and the best 80 items were retained to form the MMTIC. There are 20 E/I (Extraversion/Introversion), 20 S/N ( Sensing/Intuition), 20 T/F (Thinking/Feeling), and 20 J/P (Judging/Perceiving) items. The MMTIC was then given to 256 third, fourth, and fifth grade students. Groups within these 256 students also took a comparison instrument. Comparison instruments were The Learning Preference Inventory, The Learning Pattern Assessment, and the Children's Personality Questionnaire. As a measure of trait stability, one group was retested with the MMTIC after six weeks. Individuals familiar with the concepts of Jung's psychological type rated each item for content validity. The content evaluation mean for the entire MMTIC instrument was 4.1 on a five point Likert scale. Cronbach's alpha and split-half reliability estimates were acceptable for an instrument of this type. Correlations with the comparison instruments indicate that the MMTIC does measure psychological type in young children. Relationships between the Children's Personality Questionnaire and the MMTIC were similar to relationship patterns between the MBTI and the 16 PF. A positive relationship was found between categories on the Learning Preference Inventory and the MMTIC. No positive correlations between type on the MMTIC and type in the Learning Pattern Assessment inventory were found. Test/retest measures of trait stability indicate theE/I, T/F, and J/P categories are stable at or above the .01 level of significance. The S/N category had the lowest level of stability at the .05 level of significance. The frequency of type found in students was comparable to the theoretical expectation for E/I and S/N. More students indicated a preference for the Feeling function than would be theoretically expected. Slightly more students preferred P over J. The MMTIC is an instrument that measures psychological type in elementary children. Items may continue to be refined depending on future test results.



Murphy-Meisgeier Type Indicator for Children, Typology (Psychology), Learning, Psychology of