PRACTICE EFFECTS ON V1SUOMOTOR AND PROBLEM-SOLVING TESTS BY CHILDREN

Abstract

Practice effects on a visuomotor test (the Developmental Test of Visuo-Motor Integration) a timed visual discrimination test (the Underlining Test), and two problem-solving tests (the Porteus Mazes Test and the Tower of Hanoi Tea) were analyzed. Children of two age groups (Ms: 7.7 and 11.6 yr.) were chosen to study the effect of age on practice effects. The tests were repeated nine times with lest-retest intervals of 2 mo. The Developmental Test of Visuo-Motor Integration showed no practice effects, while the Porteus Mazes Test. the Underlining Test, and the Tower of Hanoi Test showed significant practice effects. Practice effects were larger fur the older age group on all the tests, except the Developmental Test of Visuo-Motor Integration. The Developmental Test of Visuo-Motor Integration and the Underlining Test showed good reliability, bur those of the problem-solving tasks were less satisfactory. The stability of ail the tests, except the Tower of Hanoi Test, was good.