00683nam a2200217Ia 4500001000700000003000500007005001700012008004100029010001500070020002900085050002300114082001700137100002600154245005900180260005200239300003000291500002600321504003900347650004500386650003400431175357BIBL20190320020857.0830418s1983    mdua     b    00110 eng    a 83006843   a0819132209 (pbk.)c13.000 aLB1028b.F663 19830 a370/.7/821910aFraas, John W.2Local10aBasic concepts in educational researchcJohn W. Fraas.0 aLanham, MDbUniversity Press of Americacc1983.  axvi, 310 p.bill.c21 cm.  aErrata slip inserted.  aIncludes bibliographies and index. 0aEducationxResearchxMethodology.2Local 0aEducational statistics2Local