Effects of Sleep Deprivation on Hand Steadiness in Experimental Subjects

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This study investigates the impact of sleep deprivation on hand steadiness, focusing on how varying durations of sleeplessness—12, 18, 24, and 30 hours—affect human performance. A total of 32 subjects were randomly assigned to each treatment group, ensuring 8 participants per condition. The response variable was measured by the number of times a stylus held by a subject touched the side of a 1/2" hole. The hypothesis posits that increased sleep deprivation will negatively affect hand steadiness.

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Feb 10, 2026

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Effects of Sleep Deprivation on Hand Steadiness in Experimental Subjects

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Hand Steadiness Example In this example we are interested in the effects of sleep deprivation on hand steadiness. Treatments: 12, 18, 24, and 30 hrs of no sleep. Experimental units: 32 subjects that were assigned at random to each treatment level so that each level would have 8 subjects. Response: the number of times a stylus held by a subject touches the side of a 1/2" hole Hypothesis of interest is that sleep deprivation will affect hand steadiness. Kirk, R.E. 1995. Experimental Design: Procedures for the Behavioral Sciences. Brooks/Cole, Calefornia
Hand Steadiness Example