Focusing on structural features of a scenario: An activity on expected frequencies, deviations, and chi-square contributions
In this paper, I present a way to teach statistics by helping students reuse structural features of a problem to interpret those features. It consists of explaining concepts by presenting corresponding analogical examples following a given story. Expected frequencies, deviations and chi-square contr...
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| Format: | Article |
| Language: | English |
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Université d'Ottawa
2022-07-01
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| Series: | Tutorials in Quantitative Methods for Psychology |
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| Online Access: | https://www.tqmp.org/Vignettes/vol18-2/v001/v001.pdf |
| Summary: | In this paper, I present a way to teach statistics by helping students reuse structural features of a problem to interpret those features. It consists of explaining concepts by presenting corresponding analogical examples following a given story. Expected frequencies, deviations and chi-square contributions are presented in relation to a story where six people found tokens on a geocaching course. The activity prepares students to gradually interpret these three elements of the chi-square statistic test on their own. The activity also allows for a discussion about benefits of the chi-square test of independence, namely its added value compared to proportions that can show spurious results. |
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| ISSN: | 1913-4126 |