Biostatistics Archives - Datanovia https://www.datanovia.com/en/coursecategory/biostatistics/ Data Mining and Statistics for Decision Support Mon, 13 Jan 2020 20:33:28 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.2 T-Test Essentials: Definition, Formula and Calculation https://www.datanovia.com/en/courses/t-test-essentials-definition-formula-and-calculation/ https://www.datanovia.com/en/courses/t-test-essentials-definition-formula-and-calculation/#comments Wed, 25 Dec 2019 09:47:05 +0000 https://www.datanovia.com/en/?post_type=dt_courses&p=11646 951257811312171858172  841Shares Course description The t-test can be defined as a statistical test used to compare two means. This guide provide multiple tutorials describing the different types of t-test, including: one-sample […]

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]]> https://www.datanovia.com/en/courses/t-test-essentials-definition-formula-and-calculation/feed/ 4 Statistical Tests and Assumptions https://www.datanovia.com/en/courses/statistical-tests-and-assumptions/ https://www.datanovia.com/en/courses/statistical-tests-and-assumptions/#comments Sat, 30 Nov 2019 08:39:35 +0000 https://www.datanovia.com/en/?post_type=dt_courses&p=10891 In this course, we'll introduce some research questions and the corresponding statistical tests, as well as, the assumptions of the tests.

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]]> https://www.datanovia.com/en/courses/statistical-tests-and-assumptions/feed/ 2 Comparing Multiple Means in R https://www.datanovia.com/en/courses/comparing-multiple-means-in-r/ https://www.datanovia.com/en/courses/comparing-multiple-means-in-r/#comments Thu, 28 Nov 2019 22:47:52 +0000 https://www.datanovia.com/en/?post_type=dt_courses&p=10870 This course describes how to compare multiple means in R using the ANOVA (Analysis of Variance) method and variants, including: i) ANOVA test for comparing independent measures; 2) Repeated-measures ANOVA, which is used for analyzing data where same subjects are measured more than once; 3) Mixed ANOVA, which is used to compare the means of groups cross-classified by at least two factors, where one factor is a "within-subjects" factor (repeated measures) and the other factor is a "between-subjects" factor; 4) ANCOVA (analyse of covariance), an extension of the one-way ANOVA that incorporate a covariate variable; 5) MANOVA (multivariate analysis of variance), an ANOVA with two or more continuous outcome variables.

We also provide R code to check ANOVA assumptions and perform Post-Hoc analyses. Additionally, we'll present: 1) Kruskal-Wallis test, which is a non-parametric alternative to the one-way ANOVA test; 2) Friedman test, which is a non-parametric alternative to the one-way repeated measures ANOVA test.

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]]> https://www.datanovia.com/en/courses/comparing-multiple-means-in-r/feed/ 1 Comparing Means of Two Groups in R https://www.datanovia.com/en/courses/comparing-means-of-two-groups-in-r/ https://www.datanovia.com/en/courses/comparing-means-of-two-groups-in-r/#respond Thu, 28 Nov 2019 21:35:12 +0000 https://www.datanovia.com/en/?post_type=dt_courses&p=10860 This course provide step-by-step practical guide for comparing means of two groups in R using t-test (parametric method) and Wilcoxon test (non-parametric method).

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]]> https://www.datanovia.com/en/courses/comparing-means-of-two-groups-in-r/feed/ 0 Inter-Rater Reliability Measures in R https://www.datanovia.com/en/courses/inter-rater-reliability-measures-in-r/ https://www.datanovia.com/en/courses/inter-rater-reliability-measures-in-r/#comments Thu, 07 Nov 2019 00:20:29 +0000 https://www.datanovia.com/en/?post_type=dt_courses&p=10302 In this course, you will learn the basics and how to compute the different statistical measures for analyzing the inter-rater reliability.

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