Next steps in statistics

These resources are designed to help understand some key concepts in statistics.

On
  Video Written Resource

Variance and standard deviation

    
Introduction to formulae Video Webpage
Sample variance Sample variance video  
Why we divide by (n-1) Why we divide by (n-1)  

Confidence intervals

    
Calculating confidence intervals for the mean

Video

 Stat Book webpage

Relative risk and odds ratios

    
Relative risk Osmosis Video Boston University webpage
Odds ratios

Odds ratio explained

 Psych Scene Hub webpage
Comparing relative risk and odds ratios Video

Guide to odds ratios

Medical statistics definitions, including definitions of relative risks and odds ratios

Introduction to correlation

    
Introduction to correlation

Correlation - the basic idea

Pearson's correlation coefficient

JMP webpage

Exercises
Different measures of correlation   Measures of correlation
Pearson's Correlation   Webpage
Spearman's Correlation   Webpage

Regression

    
Introduction to Simple Linear Regression Stat Trek video

Webpage

Exercises
Making predictions Video Making predictions
Multiple Regression Video Webpage - Simple vs multiple LInear Regression
Logistic Regression Video Written Resource

Hypothesis testing principles

    
Principles of hypothesis testing

Hypotheses and Hypothesis tests

P-Values simply explained

 Webpage

Type I and II errors: power, sample Size, effect size, etc

    
Power analysis

StatQuest video

Introduction

Exercise
Sample size calculations  

Basic principles

Power Based Sample Size Calculations

An Introductin to Sample Size Calculations
Type I and Type II errors Introduction Webpage
Cohen d (effect size) Calculating Cohen's d  

Hypothesis tests 

    
Paired vs unpaired data Paired and independent samples  
One-Sample T-test    
T-tests (paired)

T-test in paired samples

JMP webpage 

Paired t-tests booklet (PDF, XKB)
T-tests (unpaired)

T-test in unpaired samples

Laerd Statistics webpage

Booklet
Chi-squared test Video

Stat Book exercise

Chi-square test
Fisher's exact test Video Fisher’s Exact test (Word, XKB)
Mann-Whitney U test Video Booklet
Kruskall-Wallis test Video  
Test of two proportions Video Webpage
Testing for Normality Video Webpage
Wilcoxon sign rank test Video Webpage

ANOVA etc

    
Introducting ANOVA Understanding ANOVA MASH booklet (PDF, XKB)
ANOVA - Post Hoc tests Video MASH booklet (PDF, XKB)
One Way ANOVA Introducing ANOVA Lecture Notes
Repeated Measures ANOVA Video Laerd Statistics Webpage
Two-way ANOVA

Without Repeated Measures

With Repeated Measures

 Notes
Mixed ANOVA Video Laerd Statistics Webpage

Related information

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