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Intro to Statistics with R: Repeated measures ANOVA
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Descripción del curso
This course focuses on within-groups comparisons and repeated measures design. With the help of a working memory training experiment, one of Professor Conway’s main areas of research, it will be explained what the pros and cons are of a repeated measures design and how to conduct the calculations in R yourself.
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Introduction to repeated measures ANOVA
GratuitoIn this chapter, Professor Conway will review the pros and cons of a repeated measures design. There are many benefits to conducting experiments in this way, but there are also some issues that you need to take into consideration. For example, the lower cost and increased statistical power of a repeated measures design are great, but you need to take into account things like order effects, counterbalancing and missing data. This chapter will show you how!
Introduction to repeated measures ANOVA50 xpAnalogy between t-tests and ANOVA50 xpBetween-groups vs. within-subjects designs50 xpA tale of two experiments50 xpAlways one or the other?50 xpExplore the working memory data100 xpPros of repeated measures ANOVA50 xpReduced cost50 xpStatistically more powerful50 xpCons of repeated measures ANOVA50 xpCounterbalancing50 xpNumber of order conditions?50 xpLatin Squares design50 xpMore on Latin Squares50 xpHandling missing data50 xpWhy is missing data a problem?50 xpSphericity assumption50 xpUnderstanding sphericity50 xpMauchly's test100 xpInterpreting Mauchly's test results50 xpSummary50 xpPros of repeated measures?50 xpCons of repeated measures?50 xp - 2
More repeated measures ANOVA
GratuitoThis chapter is very hands-on. You will walk through a full example of a repeated measures ANOVA experiment starting with systematic and unsystematic variances, followed by the F-ratio and p-value, conducting post-hoc tests, and concluding with some final thoughts.
Calculating the F-ratio50 xpThe systematic between-groups variance100 xpThe subject variance100 xpThe unsystematic within-groups variance100 xpThe unsystematic variance for the repeated measures design100 xpF-ratio and p-value100 xpError term in a repeated measures design?50 xpANOVA in R100 xpSignificant F-ratio?50 xpEffect size100 xpPost-hoc tests50 xpPost-hoc test one100 xpWhat is the output?50 xpWhat can you conclude?50 xpPost-hoc test: Bonferroni100 xpPaired t-test100 xpRange of p-values50 xpSummary50 xp
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