00531nam a2200169Ia 450000500170000000800460001703700120006304000200007504100130009508400220010810000140013024500480014426000750019230000080026749000460027565000400032120250508151737.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDLbengcFEDL  aeng2eng  a371.26, KEAqFEDL  aKeats J A 0aStatistical theory of objective test scores  aMelbourne, AustrailabAustralian Council for Education Research c1951  a45p  aAustralian council for education research  aEducational - Tests and Measurement