简述社会研究中测量的层次。
在量化测量中,测量指标的精确度是用测量层次来衡量的,按精确度由低到高,测量分为定类测量、定序测量、定距测量和定比测量四个不同的测量层次。(1)定类测量(2)定序测量(3)定距测量(4)定比测量
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