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Modelling the Hofstee method reveals problems

机译:对Hofstee方法进行建模揭示了问题

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The Hofstee method can be used for standard setting examinations. It requires the production of a cumulative frequency curve from exam data on which four judgements concerning upper and lower pass scores and upper and lower failure rates are superimposed. A rectangle is drawn to connect these four values and a diagonal line is drawn from the co-ordinates of the highest fail rate with lowest pass mark and the lowest fail rate with the highest pass mark. A line drawn vertically from the point of intersection of this diagonal with the cumulative frequency curve hits the score axis at the specified pass mark.
机译:Hofstee方法可用于标准设置检查。它需要从检查数据中生成一条累积频率曲线,在该曲线上叠加了有关上下合格分数和上下故障率的四个判断。绘制一个矩形来连接这四个值,并从具有最低通过率的最高失败率和具有最高通过率的最低失败率的坐标绘制一条对角线。从该对角线与累积频率曲线的交点垂直绘制的一条线在指定的通过标记处击中得分轴。

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