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Double-Coding Test: A New Paper-and-Pencil Measure of Eye-Hand Coordination

The present research presents the development of a new paper-and-pencil coding task that may find a variety of uses in the psychological assessment of cognitive processes. The aim of the new test, named the Double-coding Test, was to create a more complex task than the previous coding tests. This new task requires two different coding processes before marking the correct sign in the appropriate space. To validate this new double-coding task it was administered along with the Coding B subtest of the Wechsler Intelligence Scale for Children-Revised and the d2 Test. Also for validation the new test was administered to a clinical group of children having Attention Deficit/Hyperactivity Disorder. A sample of normal children is presented for five different ages from 8 and 13 years. Analysis showed that the Double-coding Test differentiates between clinical group and normal children more effectively than does the WISC–R Coding B subtest or the d2 Test. Suggestions are offered for use of the Double-coding Test.