{"product_id":"how-many-subjects-helena-chmura-kraemer-9781483319544","title":"How Many Subjects?: Statistical Power Analysis in Research","description":"\u003cp\u003eWith increased emphasis on helping readers understand the context in which power calculations are done, this \u003cstrong\u003eSecond Edition\u003c\/strong\u003e of \u003cstrong\u003eHow Many Subjects?\u003c\/strong\u003e by Helena Chmura Kraemer and Christine Blasey introduces a simple technique of statistical power analysis that allows researchers to compute approximate sample sizes and power for a wide range of research designs. Because the same technique is used with only slight modifications for different statistical tests, researchers can then easily compare the sample sizes required by different designs and tests to make cost-effective decisions in planning a study. These comparisons demonstrate important principles of design, measurement, and analysis that are rarely discussed in courses or textbooks, making this book a valuable instructional resource as well as a must-have guide for frequent reference. \u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Helena Chmura Kraemer, Christine Blasey\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1483319547\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781483319544\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Sage Publications, Inc\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 02\/05\/2015\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 160\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.58lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 8.77h x 7.03w x 0.32d","brand":"Helena Chmura Kraemer","offers":[{"title":"Paperback","offer_id":43980511019263,"sku":"9781483319544","price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_7409baf9-1c2d-4ade-b4ae-287d5a2bc7ce.jpg?v=1683250318","url":"https:\/\/www.whiterainbookhouse.com\/products\/how-many-subjects-helena-chmura-kraemer-9781483319544","provider":"WR Book House","version":"1.0","type":"link"}