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008 110810t xxu||||| |||| 00| 0 eng d
050 _aJNF LB 1028 E35 2007
099 _c3138
_d3138
100 _aHayes, Lashawn Richburg
245 _aUsing covariates to improve precision for studies that randomize schools to evaluate educational interventions
_bpp. 30-59
_cHoward S. Bloom, Lashawn Richburg-hayes, and Alison Rebeck Black
500 _aEducational evaluation and policy analysis Vol. 29 No. 1 Mr 2007
501 _aA Quarterly publication of the AMerican Education Research Association
630 _aRANDOMIZING SCHOOLS
630 _aCLUSTER RANDOMIZATION
630 _aPRECISION
630 _aSTUDENT ACHIEVEMENT
630 _aINTRACLASS CORRELATION
630 _aEDUCATIONAL INTERVENTIONS
630 _aPRETESTS
942 _cJF
999 _c2767
_d2767