Kraemer, Helena Chmura. How many subjects? statistical power analysis in research Helena Chmura Kraemer and Sue Thiemann ; foreword by Victor H. Denenberg. - Newbury Park Sage Publications c1987. - 120 p. Includes index. Bibliography: p. [113]-115. ISBN: 0803929498 LCCN: 87016575 Subjects--Topical Terms: Research--Statistical methods. LC Class. No.: Q180.55.S7 / K73 1987 Dewey Class. No.: 001.4/22