It is not very scientific, what is the value for a normal couple, you need a bench mark, and otherwise it is no meaning.
0 degree is still significant even the value is small.
0 is still significant -- 回复:用统计的观点和方法评价自己的婚姻状况
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请教 "bench mark" 是什么意思?
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02/09/2010 postreply
18:20:25
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这个bench mark需要一个统计调查才能有所了解。而我提出
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02/09/2010 postreply
18:26:47