John

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I teach honours statistics in a psychology department and try not to get things too wrong. The course is designed to help kids understand numbers, variability, and concepts mostly through simulation.


245 Answers

newest activity votes
29
Are large data sets inappropriate for hypothesis testing?
20
Why is multiple comparison a problem?
13
Alpha adjustment for multiple testing
13
Why continue to teach and use hypothesis testing?
12
What are common statistical sins?
12
How to interpret p-values of 0 or 1?
11
Why does a 95% CI not imply a 95% chance of containing the mean?
11
Draw multiple plots on one graph in R?
11
Is there a way to remember the definitions of Type I and Type II Errors?
10
Pros and cons of meta-analyses
10
If mean is so sensitive, why use it in the first place?
9
Rigorous definition of an outlier?
9
Interpreting effect size
8
Follow up: In a mixed within-between ANOVA plot estimated SEs or actual SEs?
8
Does standardising independent variables reduce collinearity?
8
Software for easy-yet-robust data exploration
7
How to correct for small p-value due to very large sample size
7
Formatting graphs and figures: why and when is it bad to include horizontal lines?
7
Proving Causality with t-test/regression
7
How to interpret main effects when the interaction effect is not significant?
7
More details on bootstrap procedure to estimate confidence interval of sample SD
7
As a reviewer, can I justify requesting data and code be made available even if the journal does not?
7
Are these formulas for transforming P, LSD, MSD, HSD, CI, to SE as an exact or inflated/conservative estimate of $\hat{\sigma}$ correct?
6
Why is Hedonic Regression used instead of Linear Regression
6
Analysis of variance not statistically significant… but is there still a pattern to the data?
6
What's the difference between variance and standard deviation?
6
Why are mean 0 and standard deviation 1 distributions always used?
6
Is it okay to compare fitted distributions with the AIC?
6
Whether to report confidence intervals of effect sizes such as $r$ and $\eta^2$?
6
Why does a paired t-test (when appropiate) result in better variance?
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