#ttest

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Dr Mircea Zloteanu 🌼🐝<a href="https://mastodon.social/tags/statstab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#statstab</a> #317 Tests for Pairwise Mean Differences in R by @timmastnyThoughts: A nice illustration of what {emmeans} is doing when computing contrasts using various functions.<a href="https://mastodon.social/tags/emmeans" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#emmeans</a> <a href="https://mastodon.social/tags/r" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#r</a> <a href="https://mastodon.social/tags/pairwise" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pairwise</a> <a href="https://mastodon.social/tags/ttest" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ttest</a> <a href="https://mastodon.social/tags/tutorial" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tutorial</a> <a href="https://mastodon.social/tags/dataviz" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dataviz</a><a href="https://timmastny.com/blog/tests-pairwise-categorical-mean-emmeans-contrast/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://timmastny.com/blog/tests-pairwise-categorical-mean-emmeans-contrast/</a>

Dr Mircea Zloteanu 🌼🐝<a href="https://mastodon.social/tags/statstab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#statstab</a> #308 A Tutorial on Safe Anytime-Valid Inference [t-test]Thoughts: Safe Anytime Valid Inferences (SAVI) are the future for frequentist stats. Since #253 I'm more convinced.<a href="https://mastodon.social/tags/SafeAnytimeValidInference" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SafeAnytimeValidInference</a> <a href="https://mastodon.social/tags/SAVI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SAVI</a> <a href="https://mastodon.social/tags/evalues" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#evalues</a> <a href="https://mastodon.social/tags/likelihood" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#likelihood</a> <a href="https://mastodon.social/tags/evidence" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#evidence</a> <a href="https://mastodon.social/tags/ttest" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ttest</a><a href="https://osf.io/mdbqe/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://osf.io/mdbqe/</a>

Dr Mircea Zloteanu 🌼🐝<a href="https://mastodon.social/tags/statstab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#statstab</a> #303 When Your Permutation Test is Doomed to FailThoughts: Permutation tests are great, except for when they're not. Skewed data + unbalanced samples.<a href="https://mastodon.social/tags/stats" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#stats</a> <a href="https://mastodon.social/tags/permutation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#permutation</a> <a href="https://mastodon.social/tags/ABtesting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ABtesting</a> <a href="https://mastodon.social/tags/ttest" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ttest</a> <a href="https://mastodon.social/tags/power" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#power</a> <a href="https://mastodon.social/tags/skewed" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#skewed</a><a href="https://doi.org/10.1080/00031305.2021.1902856" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://doi.org/10.1080/00031305.2021.1902856</a>

Dr Mircea Zloteanu 🌼🐝<a href="https://mastodon.social/tags/statstab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#statstab</a> #271 {bruceR} packageThoughts: Useful functions for psychologists. I like how it treats t-tests, giving all the options from Lakens (2013) for Cohen's d, and comparison with other software. <a href="https://mastodon.social/tags/r" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#r</a> <a href="https://mastodon.social/tags/psychology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#psychology</a> <a href="https://mastodon.social/tags/ttest" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ttest</a> <a href="https://mastodon.social/tags/PCA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PCA</a> <a href="https://mastodon.social/tags/ANOVA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ANOVA</a> <a href="https://mastodon.social/tags/education" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#education</a><a href="https://psychbruce.github.io/bruceR/reference/TTEST.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://psychbruce.github.io/bruceR/reference/TTEST.html</a>

Dr Mircea Zloteanu 🌼🐝<a href="https://mastodon.social/tags/statstab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#statstab</a> #260 Effect size measures in a two-independent-samples case with nonnormal and nonhomogeneous dataThoughts: "A_w and d_r were generally robust to these violations"<a href="https://mastodon.social/tags/robust" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#robust</a> <a href="https://mastodon.social/tags/effectsize" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#effectsize</a> <a href="https://mastodon.social/tags/ttest" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ttest</a> <a href="https://mastodon.social/tags/2groups" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#2groups</a> <a href="https://mastodon.social/tags/metaanalysis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#metaanalysis</a> <a href="https://mastodon.social/tags/assumptions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#assumptions</a> <a href="https://mastodon.social/tags/ttest" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ttest</a> <a href="https://mastodon.social/tags/cohend" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cohend</a><a href="https://link.springer.com/article/10.3758/s13428-015-0667-z" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://link.springer.com/article/10.3758/s13428-015-0667-z</a> <a href="https://mastodon.social/tags/psychology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#psychology</a> <a href="https://mastodon.social/tags/statistics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#statistics</a> <a href="https://mastodon.social/tags/research" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#research</a> <a href="https://mastodon.social/tags/abtesting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#abtesting</a>

Dr Mircea Zloteanu 🌼🐝<a href="https://mastodon.social/tags/statstab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#statstab</a> #257 Permutation tests are robust and powerful at 0.5% and 5% significance levelsThoughts: Permutation tests are cool and useful to learn, although they come with some quirks.<a href="https://mastodon.social/tags/permutation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#permutation</a> <a href="https://mastodon.social/tags/randomization" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#randomization</a> <a href="https://mastodon.social/tags/ttest" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ttest</a> <a href="https://mastodon.social/tags/ordinal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ordinal</a> <a href="https://mastodon.social/tags/metricdata" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#metricdata</a><a href="https://link.springer.com/article/10.3758/s13428-021-01595-5" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://link.springer.com/article/10.3758/s13428-021-01595-5</a>

Dr Mircea Zloteanu 🌼🐝<a href="https://mastodon.social/tags/statstab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#statstab</a> #255 The p-value and model specification in statisticsThoughts: Little thought is given to the appropriateness of the test and its assumptions.<a href="https://mastodon.social/tags/pvalues" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pvalues</a> <a href="https://mastodon.social/tags/nhst" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#nhst</a> <a href="https://mastodon.social/tags/nullhypothesis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#nullhypothesis</a> <a href="https://mastodon.social/tags/testing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#testing</a> <a href="https://mastodon.social/tags/ttest" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ttest</a> <a href="https://mastodon.social/tags/fisher" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fisher</a><a href="https://gpsych.bmj.com/content/32/3/e100081" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://gpsych.bmj.com/content/32/3/e100081</a>

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