SIMPLE ADAPTIVE TESTING WITH THE WEIGHTED UP-DOWN METHOD
SIMPLE ADAPTIVE TESTING WITH THE WEIGHTED UP-DOWN METHOD
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DOI：
10.3758/bf03214307
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发表时间：
1991-03-01
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影响因子：
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通讯作者：
KAERNBACH, C
中科院分区：
文献类型：
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作者：
KAERNBACH, C
本文提出了一种比常用的变换上下法（1 up 2 down， 1 up 3 down等）更简单的自适应测试方法。此外，加权上下法可以收敛到心理测量函数的任意期望点。规则很简单：每个正确的响应导致信号电平降低，每个错误的响应导致信号电平增加。与简单的上下法（1上1下）的唯一区别是向上和向下的台阶大小不同。新程序的简单构造在效率和稳定性方面得到了回报：蒙特卡罗模拟揭示了加权上下法相对于1上2下规则的明确优势，尽管很小。
This paper proposes a method for adaptive testing that is less complicated than the commonly used transformed up-down methods (1 up 2 down, 1 up 3 down, etc.). In addition, the weighted up-down method can converge to any desired point of the psychometric function. The rule is very simple: Each correct response leads to a decrease in signal level, each incorrect response to an increase. The only difference from the simple up-down method (1 up 1 down) is that the steps upward and the steps downward are of a different size. The straightforward construction of the novel procedure pays off in efficiency and stability: A Monte Carlo simulation reveals a definite advantage, though small, of the weighted up-down method over the 1-up-2-down rule.