EXPLANATION AND VERBALIZATION IN A COMPUTER-ASSISTED SEARCH TASK
EXPLANATION AND VERBALIZATION IN A COMPUTER-ASSISTED SEARCH TASK
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DOI：
10.1080/14640748708401804
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发表时间：
1987-11-01
期刊：
影响因子：
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通讯作者：
BROADBENT, DE
中科院分区：
文献类型：
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作者：
BERRY, DC;BROADBENT, DE
三个实验研究了两种不同形式的解释对复杂搜索任务的辅助性能的影响。这项任务包括通过检测河流中是否存在各种污染物来确定一组工厂中的哪一个对污染河流负有责任。所有受试者都收到计算机建议，告诉他们应该检测哪些污染物。此外，一些受试者还收到了关于咨询方案工作原理的解释。两种形式的解释进行了比较。实验1表明，被允许问“为什么”的每个计算机的建议，比那些谁提供了一个块文本的解释，在每次试验开始时，显着更好的表现。然而，实验2表明，后一种解释并非完全无效。被要求在单一解释之后用语言表达的受试者的表现明显好于被要求用语言表达但没有得到任何形式解释的受试者。最后，实验3表明，受试者谁收到多个“为什么”的解释或解释/言语化组合保持上级性能水平在随后的独立试验。
Three experiments examine the effects of two different forms of explanation on assisted performance on a complex search task. The task involves determining which of a set of factories is responsible for polluting a river by testing the river for the presence or absence of various pollutants. All subjects receive computer suggestions as to which pollutants they should test for. In addition, some subjects receive an explanation of the principle according to which the advice program works. Two forms of explanation are compared. Experiment 1 shows that subjects who are allowed to ask "why" each computer recommendation is made perform significantly better than those who are provided with a block text of explanation at the start of each trial. Experiment 2 shows that the latter type of explanation is not completely ineffective, however. Subjects who are required to verbalize following the single explanation perform significantly better than do subjects who are required to verbalize but who have not received any form of explanation. Finally, Experiment 3 shows that subjects who receive the multiple "why" explanations or the explanation/verbalization combination maintain a superior performance level on subsequent unaided trials.