Statistics 101
Goal: Review of core statistics for psychophysiology research
Prepare for the lab
- Recall basic statistical concepts (from high school or from statistics at university or from Wikipedia: Statistics and Statistical_hypothesis_testing). As a guideline, you can follow the keywords included with the Q&A session below.
Materials
- Q&A Session – a short series of keywords to “warm up”. Describe (in a few words) what are:
- Null hypothesis and Alternative hypothesis (and how they change when the t-test is one-tailed or two-tailed)
- Normal distribution
- Significance level (alpha)
- p-value
- Type 1 and Type 2 errors
- Student's t-test
- Analysis of Variance (ANOVA)
- Multiple comparisons
- Post-hoc tests
- Practice session:
- Practice the basics of statistics by using Student's t-test and ANOVA to verify some statistical hypotheses in the Jupyter Notebook: Statistics 101
Learn more!
- Statistics Hell-P – nice introduction into core statistical concepts
- P-values Explained By Data Scientist – how to understand the p-values
- Interactions | Matt Golder – a very detailed explanation of what interactions in linear models are and are not
- Different types of error rates | mumfordbrainstats – explanation and visual comparison of PCER, FWER, and FDR for multiple comparisons problem in voxelwise testing of fMRI