它是上四分位数与下四分位数之间的差异。
上四分位数是25%的观察值位于其上的值。
The upper quartile is that value above which 25 per cent of the observations lie.
在范围和目的性以及清晰程度和呈现方式上的得分稍高(前者:平均得分:0.82,四分位差IQR:0.58-0.89;后者:平均得分:0.67,IQR:0.50-0.78)。
Scores were better for the domains of scope and purpose (median: 0.82, interquartile range, IQR: 0.58–0.89) and clarity and presentation (median: 0.67, IQR: 0.50–0.78).
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