Isaac, Stephen,  1925- <br/><br/>
Handbook in research and evaluation :  a collection of principles, methods, and strategies useful in the planning, design, and evaluation of studies in education and the behavioral sciences / 
Stephen Isaac and William B. Michael. 
 - 2nd ed. 
 - San Diego, Calif. :  EDITS Publishers,  c1981. 
 - 234 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>0912736259 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Research.<br/>Education--Research.