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Independent sample t test: Neurological Test Scores

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Downs and Abwender (2002) evaluated soccer players and swimmers to determine whether the routine blows to the head experienced by soccer players produced long-term neurological deficits. In the study, neurological tests were administered to mature soccer players and swimmers and the results indicated significant differences. In a similar study, a researcher obtained the following data

Swimmers: 10, 8, 7, 9, 13, 7, 6, 12
Soccer Players: 7, 4, 9, 3, 7

a) Are the neurological test scores significantly lower for the soccer players than the swimmers in the control group? Use a one-tailed test with and alpha =.05

b) Compute the value of r (sqr) (percentage of variance accounted for) for these data.

Please use all standard mathematical calculations.

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Solution Summary

The solution provides step by step method for the calculation of testing of hypothesis. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.

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a) Are the neurological test scores significantly lower for the soccer players than the ...

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