Abstract
This study examined the comparative validity of the Harris and Koppitz scoring systems for human-figure drawings by 50 boys who were administered these tests as part of a regular psychological evaluation. No differences were found between the Harris Point Scale and the Koppitz system in terms of interscorer reliability and concurrent validity. The validity coefficients obtained with the Quality Scale were significantly lower than those of the Point Scale and Koppitz system in relation to both Verbal and Full Scale IQ.
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