Hole Type Steadiness Tester

This instrument has been designed to measure one aspect of the psychomotor phenomena of steadiness. Nine holes, gradually diminishing in size, are used. The subject’s task is to hold the stylus in the hole without touching the side. The effects on steadiness of such variables as exercise, handedness, smoking, or alcoholic ingestion just before being tested can be studied.

Following a series of trials, the performance curves can also be analyzed for practice effects and fatigue. This test is supplied with a battery-operated Economy Clock/Counter, model 54060.