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R Hugh Morton 《Journal of sports sciences》2013,31(5):549-557
The basic anatomy of an experimental design is used as an expository introduction to the examination of several repeated measures experiments described in recent pages of this and other journals. This examination reveals problematic issues concerning some common design and analysis features of such experimental designs. In particular, the hierarchical structures and/or presence of time trends is highlighted. These issues are discussed in an attempt to assist researchers to recognize such problems, to avoid the associated difficulties in the future, and to exploit the advantages of sound design with appropriate, efficient and informative analysis. While alternate reanalyses of the data of these experiments might reveal the conclusions to be unaffected by such issues, researchers should still be cautious. In retrospect, such occurrences should be seen as fortuitous, not as justification for inefficient or less informative analyses. More importantly, such reanalyses could reveal more enlightening information, and I argue that if a design permits such information to be discovered, then it behoves researchers to perform such analyses and to make such discoveries. 相似文献
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Six-year-old children can judge a speaker's feelings either from content or paralanguage but have difficulty switching the basis of their judgments when these cues conflict. This inflexibility may relate to a lexical bias in 6-year-olds' judgments. Two experiments tested this claim. In Experiment 1, 6-year-olds (n = 40) were as inflexible when switching from paralanguage to content as when switching from content to paralanguage. In Experiment 2, 6-year-olds (n = 32) and adults (n = 32) had more difficulty when switching between conflicting emotion cues than conflicting nonemotional cues. Thus, 6-year-olds' inflexibility appears to be tied to the presence of conflicting emotion cues in speech rather than a bias to judge a speaker's feelings from content. 相似文献