Gay, Lorraine Rumbel Educational research : competencies for analysis and applications / L. R. Gay, Peter Airasian. - 7th ed. - Upper Saddle River, N. J. : Merrill Prentice Hall, c2003. - xvii, 605p. : ill. ; 26 cm. illustrations ; cm. Glossary : p. 585 - 593. Includes bibliographical references and index. ISBN: 0130994634 hard bound Subjects--Topical Terms: Education--Research LC Class. No.: LB1028 / G25 2003