Research Methods: R Supplemental User Guide
Intended use
Installing R/RStudio
Descriptive Statistics
Frequency Tables
Data Visualization
Z Scores
t
-test
Types of
t
-tests
One Sample
t
-test:
Paired Samples
t
-test:
Independent Samples
t
-test:
Student
t
-test:
Welch
t
-test:
Wilcoxon rank test:
Assumptions:
Process:
Step 1: Determine your research question.
Step 2: Visualize these data
Step 3: Test assumptions
Step 4: Conduct the
t
-test
Correlation Coefficients
Data Visualization
Pearson product-moment correlation.
Spearman rho
Chi-Squared test
Chi-Squared test for independence
Analysis of Variance (ANOVA)
Linear Regression
References
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Research Methods: R Supplemental User Guide
References