hand steadiness example

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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.

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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. - PowerPoint PPT Presentation

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Page 1: Hand Steadiness Example

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

Page 2: Hand Steadiness Example

Treat 1 Treat 2 Treat 3 Treat 4

12hrs 18hrs 24hrs 30hrs

y11 4 y21 4 y31 5 y41 3

y12 6 y22 5 y32 6 y42 5

y13 3 y23 4 y33 5 y43 6

y14 3 y24 3 y34 4 y44 5

y15 1 y25 2 y35 3 y45 6

y16 3 y26 3 y36 4 y46 7

y17 2 y27 4 y37 3 y47 8

y18 2 y28 3 y38 4 y48 10

Hand Steadiness Example