Stimulus dispersions in the method of constant stimuli.
Stimulus dispersions in the method of constant stimuli.
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恒定刺激方法中的刺激分散。
DOI：
10.1037/h0075454
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发表时间：
1932
影响因子：
--
通讯作者：
L. Thurstone
中科院分区：
文献类型：
--
作者：
L. Thurstone
本文提出了一种数值计算方法，用于对常数法表示的刺激离散度进行数值计算。实验数据的描述和两种情况下，他们可能被处理。给出了一种求每个刺激离散度近似值的方法。给出了用常数法进行实验时，是用更简单的情形V还是用更费力的情形III的判据。刺激频散与平均频散的偏差越大，则情况V的主假设引起的误差越大，实验数据与计算数据之间的差异也越大。（PsycINFO数据库记录(c) 2016 APA，版权所有）
A method is developed for numerically evaluating the stimulus dispersions for stimuli that have been presented by the constant method. Description of the experimental data and two cases under which they may be treated are presented. A procedure is presented for obtaining the approximate value for the dispersion of each stimulus. A criterion for determining whether the simpler form of Case V or the more laborious Case III should be used for an experiment conducted by the constant method is given. The greater the deviation of the stimulus dispersion from the average dispersion, the greater will be the error caused by the principal assumption of Case V and the greater will be the discrepancies between experimental and calculated data.(PsycINFO Database Record (c) 2016 APA, all rights reserved)