Standardization of Tests of Visuo-spatial Construction and Mental Rotation

The aim of the present study was to establish normative data for tests of visuo-spatial construction. The tests studied were the Bender Gestalt Test, the Stick Construction Test, and the Three-Dimensional mock Construction Test. The sample consisted of 120 normal school-educated subjects, of both genders, belween the ages 16 and 50. 25% of the total sample was re-tested after a period of six to eight weeks to establish test-retest reliability. Normative data consisting of percentile scores were derived for those test variables which were found to be reliable. Although validation of these tests was attempted using a sample of frontal lesion cases and parietal lesion cases, the small sample of parietal lesion cases necessitates further work to fully establish the validity.