51 lines
3.1 KiB
Markdown
51 lines
3.1 KiB
Markdown
Methods Workshop WS 2025/26: Power simulations
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================
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January, 21-22, 2026
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## Schedule
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| Day | Time | Topic | Exercises |
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|:----|:------------|:-------------------------------------------------------------------------------------------------------------------|:----------------------------------------------------------------------------------------------------------------------------------|
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| Wed | 9:00–10:30 | [Simulation-based power analysis](01_intro/powersim-intro.pdf) | [Binomial test power simulation](01_intro/exercises.md) |
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| | 10:45–12:15 | [Power (curves) for t-tests](02_ttest/powersim-ttest.md) | [Temporal value asymmetry](02_ttest/exercises-ttest1.md), [Directed reading activities](02_ttest/exercises-ttest2.md) |
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| | 13:00–14:00 | [Power for ANOVAs](03_anova/powersim-anova.md) | [Testing the interaction in two-by-two ANOVA](03_anova/exercises-anova.md) |
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| Thu | 9:00–10:30 | [Power for baseline/follow-up measurements](04_ancova/intro-ancova.pdf) | [Shoulder pain and acupuncture](04_ancova/exercises-ancova1.md), [MASS anorexia data](04_ancova/exercises-ancova2.md) |
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| | 10:45–12:15 | [Introduction to LMMs](05_mixed1/intro-lmm.pdf), [Power for longitudinal data analysis](05_mixed1/powersim-lmm.md) | [Risperidone vs. haloperidol and schizophrenia](05_mixed1/exercises-pwrlmm.md) |
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| | 13:00–14:00 | [Data simulation for crossed random-effects models](06_mixed2/intro-datsimlmm.pdf) | [Data simulation for crossed random-effects models](06_mixed2/exercises-datsimlmm.md), [Physical healing](06_mixed2/exercises.md) |
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## Content
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- Power and the significance filter
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- Simulation-based power analysis with R
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- Drawing power curves
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- Power for t-tests, ANOVA, ANCOVA, and mixed-effects models
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## Prerequisites
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- Introductory knowledge of statistics
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- Basic knowledge of R
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## Software
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Participants will need to have installed:
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- A current R version (<https://CRAN.R-project.org/>)
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- An IDE for R (like RStudio or VSCode) or a text editor with syntax
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highlighting (like Vim or Notepad++)
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- Additional R package:
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- lme4: <https://CRAN.R-project.org/package=lme4>
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## Literature
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<div id="refs" class="references csl-bib-body hanging-indent">
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<div id="ref-Wickelmaier22" class="csl-entry">
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Wickelmaier, F. 2022. “Simulating the Power of Statistical Tests: A
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Collection of R Examples.” *ArXiv*.
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<https://doi.org/10.48550/arXiv.2110.09836>.
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</div>
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</div>
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