Evidence of Incremental Validity between Pfister Test and Human Figure Drawing

Abstract

The aim of this study was to seek incremental evidence of validity between the Color Pyramid Test (CPT) and the Human Figure Drawing (HFD). The incremental validity of information obtained fro m a g iven test can predict some- thing unique, which other existing measures or constructs cannot predict. The sample consisted of 118 children fro m public schools in the state of Sao Paulo, Brazil, of which 59 (50%) were male, aged between 6 and 12 years (M = 9.22, SD = 1.75) and education ranging from pre-kindergarten to seventh grade. The tests were ad ministered on each child without prede- termined time for their imp lementation. The results showed significant correlations between the two tests, which contrib- uted to the evidence of incremental valid ity between the two tests. It is suggested that further studies on the evidence of validity and accuracy, with controlled samp les and other indicators,not explored in this study, will contribute to the pro jec- tive techniques surveyed.