RESEARCH · METHODS · EVIDENCE
Statistics resources
Browse statistics lessons
- Statistics for research
- Center and spread
- Distributions and standard errors
- Statistical inference
- P-values and interpretation
- Critical values and test direction
- Compare means with t-tests
- Read t-test output
- Compare several means with ANOVA
- Read an ANOVA table
- Analyze categorical counts
- Read chi-square output
- Describe an association
- Read correlation results
- Interpret a regression model
- Choose a statistical method
- Statistics resources
Use the linked references for methods, interpretation, and reporting.
References: NIST statistical handbook · ASA statement on p-values · NIST two-sample t-test · NIST paired observations · NIST one-way ANOVA · NIST categorical models · NIST model assumptions
Earlier teaching handouts
These PDFs are historical supplementary material. Refer to the lessons for guidance.
- Statistical symbols (legacy PDF)
- Parametric methods (legacy PDF)
- Nonparametric methods (legacy PDF)
- Multivariate methods (legacy PDF)
References: NIST statistical handbook