Last updated: 06 May 2023
Instructor: Prof Dr Md Kamrul Hasan
Dept of Agricultural Extension and Rural Development
Patuakhali Science and Technology University
Dumki, Patuakhali 8602
Email: kamrulext@pstu.ac.bd
Mobile: 01711 51 16 18
Lesson 1: 23 September 2022 - Research Tools: Validity and Reliability
Contents: R program installation, concepts and examples of validity and reliability, revisiting the research design, unavoidable principles of experimental design, measuring validity and reliability
Lesson 2: 09 October 2022 - Application of R Programming for Data Analysis
Contents: Object, vector, variable, data types, mathematical operations, programming operators, combining vectors, installation ‘tidyverse’ package, loading package, data re-coding, tabulation, creating data-sets and writing data-sets in .csv format
Lesson 3: 14 October 2022 - Application of R Programming for Data file Reading, cross tabulation, Chi-square test, Fisher’s exact test
Contents: Data file reading (.csv and .xlsx formats), assumptions of Chi-square test and executing Chi-square test
Lesson 4: 15 October 2022 - Application of R Programming for Variable Selection and Manipulation, data visualizations
Contents: Piping commands, column (variable) and row (case or subject) selection, variable gathering and spreading, summary information, customized summary with dplyr, mutating variables, plotting data
Lesson 5: 16 October 2022 - Correlation and regression using R
Contents: t-test, Welch test, correlation (Pearson and Spearman), simple regression, residual analysis
Lesson 6: 21 October 2022 - ANOVA using R
Contents: Multiple regression and ANOVA, selection of statistical tests, R learning by R (swirl, learnr, Rcmdr)