Practical statistics for educators /
Ravid, Ruth.
Practical statistics for educators / Ruth Ravid. - 4th ed. - Lanham, Md. : Rowman & Littlefield, c2010. - xvi, 256 p. : ill. ; 26 cm.
Includes index.
Includes bibliographical references.
9781442206557 (pbk.)
Educational statistics--Study and teaching.
Educational tests and measurements.
Practical statistics for educators / Ruth Ravid. - 4th ed. - Lanham, Md. : Rowman & Littlefield, c2010. - xvi, 256 p. : ill. ; 26 cm.
Includes index.
Includes bibliographical references.
9781442206557 (pbk.)
Educational statistics--Study and teaching.
Educational tests and measurements.