A team of clinical psychologists tested the extent to which levels of cognitive functioning were related to

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A team of clinical psychologists tested the extent to which levels of cognitive functioning were related to the number of symptoms for some disorder expressed in 15 patients. The researchers recorded the following values: SSXY = 48.60, SSX = 355.73 and SSY = 96.40.
(a) What is the proportion of variance, r2, in symptoms (Y) that can be explained by levels of cognitive functioning (X)?
(b) If the total variation in Y is 96.40 (SSY = 96.40), then what is the SSregression, or the amount of variation that is predicted by X?
(c) What is the SSresidual, or the amount of variation in Y that is remaining?
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Statistics

ISBN: 9780321755933

12th Edition

Authors: James T. McClave, Terry T Sincich

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