基礎心理学研究
Online ISSN : 2188-7977
Print ISSN : 0287-7651
解説
刺激の効果を侮るなかれ―ランダム刺激効果を含んだ線形混合モデルの重要性と落とし穴―
村山 航
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ジャーナル フリー

2018 年 36 巻 2 号 p. 236-242

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When researchers analyze data from an experiment with multiple experimental stimuli, they tend to aggregate responses to the experimental stimuli before performing a statistical test (e.g., t-test, analysis of variance). This common practice, however, ignores sampling errors of experimental stimuli, resulting in a substantial increase in Type-1 error rate. This article reviews the relevant literature and provides conceptual explanations about the mechanisms underlying the inflation of Type-1 error rate. The article also illustrates how linear mixed-effects model with random-stimulus effects can address the issue, with the emphasis on the correct model specification when using linear mixed-effects model.

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© 2018 日本基礎心理学会
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