HYPERACTIVITY AND THE MACHINE: THE ACTOMETER
CHARLES FELZEN JOHNSON · Child Development · 1971
JOHNSON, CHARLES F. Hyperactivity and the Machine: The Actometer. CHILD DEVELOPMENT, 1971, 42, 2105--2110. The actometer, a simple activitymeasuring device which has been used in several projects, was investigated for reliability. The actometers tested in this study were not reliable. Even if they were completely reliable, the relationship of the motion they qualitate to the behavior of the hyperactive child would be questionable.