Abstract
The House-Tree-Person drawings of 90 Ss were evaluated with respect to diagnosed brain injury. Seven objective items such as window drawn on house edge and relative size of door were selected and weighted to give a scale of 22 points. This scale then yielded a mean score of 6.0 for 30 brain-injured Ss, 2.8 for Ss with various forms of physical disability, and 1.6 for 30 University of Washington students. The differences among these means were significant beyond the .001 level. A mean score of 4.8, obtained for a cross-validation group of an additional 10 brain-injured Ss, was significantly higher than the means for the control groups but not significantly different from the mean for the first brain-injured group. The relationship of diagnosed brain injury to Circular Pencil Maze scores and WAIS subtest scores on Digit Span, Vocabulary, and Block Design, as well as MMPI T scores on the schizophrenic scale were also investigated. Three illustrative cases showed that quality of drawing and “intelligence” were not major factors in the H-T-P scores for brain-injury.
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