RESEARCH · METHODS · EVIDENCE
Statistics for research
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
Understand the data, choose a method, and interpret uncertainty.
Start with descriptions and study design, then move to inference. These introductory lessons are a starting point for discussion with an instructor or statistician, not a substitute for a study-specific analysis plan.
Research tutorial · Excel practice
References: NIST statistical handbook