Statistical Power Analysis for the Behavioral Sciences
Statistical Power Analysis for the Behavioral Sciences

Author: Jacob Cohen

Publisher: Routledge

Published: 2013-05-13

Total Pages: 625

ISBN-13: 1134742770

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Statistical Power Analysis is a nontechnical guide to power analysis in research planning that provides users of applied statistics with the tools they need for more effective analysis. The Second Edition includes: * a chapter covering power analysis in set correlation and multivariate methods; * a chapter considering effect size, psychometric reliability, and the efficacy of "qualifying" dependent variables and; * expanded power and sample size tables for multiple regression/correlation.

Sula
Sula

Author: Toni Morrison

Publisher: Knopf

Published: 2002-04-05

Total Pages: 193

ISBN-13: 0375415351

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From the acclaimed Nobel Prize winner: Two girls who grow up to become women. Two friends who become something worse than enemies. This brilliantly imagined novel brings us the story of Nel Wright and Sula Peace, who meet as children in the small town of Medallion, Ohio. Nel and Sula's devotion is fierce enough to withstand bullies and the burden of a dreadful secret. It endures even after Nel has grown up to be a pillar of the black community and Sula has become a pariah. But their friendship ends in an unforgivable betrayal—or does it end? Terrifying, comic, ribald and tragic, Sula is a work that overflows with life.