Department of Psychology.
J Exp Psychol Hum Percept Perform. 2019 Aug;45(8):983-994. doi: 10.1037/xhp0000653. Epub 2019 Apr 15.
People judge the relative difficulty of different kinds of tasks all the time, yet little is known about how they do so. We asked university students to choose between tasks that taxed perceptual-motor control and memorization to different degrees. Our participants decided whether to carry a box through a wide (81 cm) or narrow (36 cm) gap after memorizing six, seven, or eight digits. The model that maximized the likelihood of observing the choice data treated the extra physical demand of passing through the narrow gap as functionally equivalent to memorizing an extra .55 digits. Substantively, the model suggested that participants judged the difficulty of the compound tasks in terms of separate resources. The approach introduced here may help interrelate different kinds of task difficulty. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
人们一直在评判不同类型任务的相对难度，但对于他们是如何做到这一点的却知之甚少。我们要求大学生在需要不同程度感知运动控制和记忆的任务之间做出选择。我们的参与者在记住六个、七个或八个数字后，决定是要穿过一个 81 厘米宽还是 36 厘米宽的缝隙来搬运一个盒子。使观察到的选择数据的可能性最大化的模型将通过狭窄缝隙的额外物理需求视为等同于额外记忆 0.55 个数字。从实质上讲，该模型表明参与者根据独立的资源来判断复合任务的难度。这里介绍的方法可以帮助将不同类型的任务难度联系起来。
