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Category > Psychology Posted 14 Oct 2017 My Price 10.00

Ritalin significantly improves attention span?

The stimulant Ritalin has been shown to increase attention span and improve academic performance in children with ADHD.  To demonstrate the effectiveness of the drug, a researcher selects a sample of n = 25 children diagnosed with the disorder and measures each child’s attention span before and after taking the drug.  The data show an average attention span of MD = 6.8 minutes with a standard deviation of sD = 5.5 minutes.

Is this result sufficient to conclude that Ritalin significantly improves attention span?  Use a one-tailed test with a = .01.

 

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CourseLover
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Status NEW Posted 14 Oct 2017 06:10 AM My Price 10.00

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