00574nam a2200193 a 450000500170000000800410001703500190005810000180007722200520009524500880014730000090023536200200024450500200026465300290028465300220031390400150033590500130035099900170036320210219153517.0991125n                      000 0     u  aUPN01000104414  aMory, Edna H.  aEDUCATIONAL TECHNOLOGY RESEARCH AND DEVELOPMENT  aThe use of informational feedback in instruction : implications for future research  a5-20  a40, No. 3, 1992  aSeptiembre 19930 aPROCESOS DE APRENDIZAJES0 aRETROALIMENTACION  aACb042225  aArticulo  c78857d78857