hand steadiness example
DESCRIPTION
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 PresentationTRANSCRIPT
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
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