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??????? ?Exploratory Factor Analysis (EFA). ????????????. ???????????. ??????????????. ????????????. ?????. . ????. x1=1 l11f1 l12f2 l1qfq e1x2=2 l21f1 l22f2 l2qfq e2xp=p lp1f1 lp2f2 lpqfq epx?????;f?????l??????;e?????(???). . ????. ???????????????????????????
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