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Biostatistics · Lessons

Biostatistics lessons

11 sections · 81 skills · work through the full outline skill by skill — read the long-form lesson or flip through the slide-style version.
Long-form lessonsSlide-style lessons

Biostatistics

Practice 81 skills across this outline.

Recommended next
Population, Sample, Parameter & Statistic
Study Design & Data · Types of Studies in Health Sciences
Long-form lesson
Weighting distribution
20 categories
Categorical Data Analysis
9%
Comparing Multiple Groups
9%
Epidemiologic Measures
9%
Diagnostics & Screening
9%
Study Design & Data · Types of Studies in Health Sciences
5%
Descriptive Statistics & Visualization · Univariate Summaries
5%

Skills

The comprehensive taxonomy of biostatistics — drill into a card to work its skills.

Study Design & Data · Types of Studies in Health Sciences

5 core skills5% total weight
0/5 completed
5 skills to mastery
1
Population, Sample, Parameter & StatisticRecommended
Long-form
2
Study DesignsAvailable
Long-form
3
Randomization, Blinding & ControlsAvailable
Long-form
4
Bias & ConfoundingAvailable
Long-form
5
Observational vs. Randomized StudiesAvailable
Long-form

Study Design & Data · Data Types and Measurement

4 core skills4% total weight
0/4 completed
4 skills to mastery
1
Missing Data ConceptsAvailable
Long-form
2
Outliers & Data CleaningAvailable
Long-form
3
Classifying Variables & ScalesAvailable
Long-form
4
Data Collection & QualityAvailable
Long-form

Regression & Modeling · Linear Regression

4 core skills2% total weight
0/4 completed
4 skills to mastery
1
Inference for Regression SlopeAvailable
Long-form
2
Slope, Intercept, R² & ResidualsAvailable
Long-form
3
Checking Regression AssumptionsAvailable
Long-form
4
Simple Linear RegressionAvailable
Long-form

Regression & Modeling · Survival Analysis

4 core skills2% total weight
0/4 completed
4 skills to mastery
1
Kaplan-Meier CurvesAvailable
Long-form
2
Hazard & Hazard RatiosAvailable
Long-form
3
Time-to-Event Data & CensoringAvailable
Long-form
4
Cox Proportional Hazards ModelAvailable
Long-form

Regression & Modeling · Logistic Regression

3 core skills2% total weight
0/3 completed
3 skills to mastery
1
Assessing Model FitAvailable
Long-form
2
Binary Outcomes & Log-OddsAvailable
Long-form
3
Logistic Regression: Odds RatiosAvailable
Long-form

Regression & Modeling · Multiple Regression

5 core skills3% total weight
0/5 completed
5 skills to mastery
1
Interaction TermsAvailable
Long-form
2
Multiple Regression CoefficientsAvailable
Long-form
3
Multicollinearity & ConfoundingAvailable
Long-form
4
Indicator VariablesAvailable
Long-form
5
Model Selection & OverfittingAvailable
Long-form

Descriptive Statistics & Visualization · Univariate Summaries

4 core skills5% total weight
0/4 completed
4 skills to mastery
1
Distribution Shape & OutliersAvailable
Long-form
2
Percentiles & IQRAvailable
Long-form
3
Variance & Standard DeviationAvailable
Long-form
4
Mean, Median & ModeAvailable
Long-form

Descriptive Statistics & Visualization · Visualizations

4 core skills4% total weight
0/4 completed
4 skills to mastery
1
Interpreting ScatterplotsAvailable
Long-form
2
Time Series PlotsAvailable
Long-form
3
Interpreting BoxplotsAvailable
Long-form
4
Choosing PlotsAvailable
Long-form

Probability & Distributions · Probability Basics

3 core skills4% total weight
0/3 completed
3 skills to mastery
1
Sensitivity, Specificity, PPV & NPVAvailable
Long-form
2
Bayes' Theorem in DiagnosticsAvailable
Long-form
3
Basic Probability RulesAvailable
Long-form

Probability & Distributions · Common Distributions

5 core skills5% total weight
0/5 completed
5 skills to mastery
1
Chi-Square DistributionAvailable
Long-form
2
Poisson DistributionAvailable
Long-form
3
Binomial DistributionAvailable
Long-form
4
t-DistributionAvailable
Long-form
5
Normal Distribution & z-ScoresAvailable
Long-form

Categorical Data Analysis

5 core skills9% total weight
0/5 completed
5 skills to mastery
1
Relative Risk & Risk DifferenceAvailable
Long-form
2
Odds & Odds RatiosAvailable
Long-form
3
Fisher's Exact TestAvailable
Long-form
4
Chi-Square Goodness-of-FitAvailable
Long-form
5
Chi-Square Test of IndependenceAvailable
Long-form

Data Methods & Statistical Communication · Reproducible Analysis and Reporting

4 core skills5% total weight
0/4 completed
4 skills to mastery
1
Interpreting Statistical OutputAvailable
Long-form
2
Writing Statistical ResultsAvailable
Long-form
3
Documenting Assumptions & LimitationsAvailable
Long-form
4
Tables & Figures for ReportingAvailable
Long-form

Data Methods & Statistical Communication · Ethics and Research Practice

3 core skills4% total weight
0/3 completed
3 skills to mastery
1
Human Subjects & Data PrivacyAvailable
Long-form
2
P-Hacking & TransparencyAvailable
Long-form
3
Conflicts of Interest & Reporting BiasAvailable
Long-form

Comparing Multiple Groups

4 core skills9% total weight
0/4 completed
4 skills to mastery
1
Multiple Comparisons & Family-Wise ErrorAvailable
Long-form
2
One-Way ANOVAAvailable
Long-form
3
Post-Hoc ComparisonsAvailable
Long-form
4
ANOVA AssumptionsAvailable
Long-form

Epidemiologic Measures

4 core skills9% total weight
0/4 completed
4 skills to mastery
1
Rate Calculations (Person-Time)Available
Long-form
2
Number Needed to Treat (NNT)Available
Long-form
3
Age Adjustment/StandardizationAvailable
Long-form
4
Incidence vs. PrevalenceAvailable
Long-form

Hypothesis Testing · Core Concepts

4 core skills5% total weight
0/4 completed
4 skills to mastery
1
Type I/II Errors & PowerAvailable
Long-form
2
Statistical vs. Clinical SignificanceAvailable
Long-form
3
Null & Alternative HypothesesAvailable
Long-form
4
p-Values & Significance LevelsAvailable
Long-form

Hypothesis Testing · Common Tests

4 core skills4% total weight
0/4 completed
4 skills to mastery
1
Paired t-TestAvailable
Long-form
2
Nonparametric TestsAvailable
Long-form
3
Proportion TestsAvailable
Long-form
4
One & Two-Sample t-TestsAvailable
Long-form

Diagnostics & Screening

4 core skills9% total weight
0/4 completed
4 skills to mastery
1
Predictive Values & PrevalenceAvailable
Long-form
2
ROC Curves & AUCAvailable
Long-form
3
Sensitivity & SpecificityAvailable
Long-form
4
Likelihood RatiosAvailable
Long-form

Sampling & Estimation · Sampling Distributions and CLT

3 core skills4% total weight
0/3 completed
3 skills to mastery
1
Standard ErrorAvailable
Long-form
2
Central Limit TheoremAvailable
Long-form
3
Sampling Variability & DistributionsAvailable
Long-form

Sampling & Estimation · Confidence Intervals

5 core skills5% total weight
0/5 completed
5 skills to mastery
1
Sample Size PlanningAvailable
Long-form
2
CI for DifferencesAvailable
Long-form
3
CI for a ProportionAvailable
Long-form
4
Interpreting CIs in Health ResearchAvailable
Long-form
5
CI for a MeanAvailable
Long-form