Skip to main content
User account menu
Log in
Videos
Welcome
Welcome
Introduction
Introduction / Section 01: Storytelling
Introduction / Section 02: Terms
Introduction / Section 03: Measurement
Distributions
Distributions / Section 01: Tables
Distributions / Section 02: Bar Charts
Distributions / Section 03: Pie Charts
Distributions / Section 04: Boxplots
Distributions / Section 05: Histograms
Central Tendency
Central Tendency / Section 01: Introduction
Central Tendency / Section 02: The Mode
Central Tendency / Section 03: The Median
Central Tendency / Section 04: The Mean
Variability
Variability / Section 01: Introduction
Variability / Section 02: The Range
Variability / Section 03: Quartiles and the IQR
Variability / Section 04: Degrees of Freedom
Variability / Section 05: The Population Variance
Variability / Section 06: The Population Standard Deviation
Variability / Section 07: The Sample Variance
Variability / Section 08: The Sample Standard Deviation
z-Scores
z-Scores / Section 01: Calculating z-Scores
z-Scores / Section 02: Comparing Two z-Scores
z-Scores / Section 03: Computing X Scores from z-Scores
z-Scores / Section 04: z-Distributions
z-Scores / Section 05: The Standard Normal Distribution
Sampling Distributions
Sampling Distributions / Section 01: Introduction
Sampling Distributions / Section 02: Bias in Estimation
Sampling Distributions / Section 03: The Central Limit Theorem
Sampling Distributions / Section 04: z-Scores for Sample Means
Estimation
Estimation / Section 01: Introduction
Estimation / Section 02: Accuracy and Precision
Estimation / Section 03: Point Estimates
Estimation / Section 04: Confidence Intervals
Estimation / Section 05: Calculating Confidence Intervals
Estimation / Section 06: Worked Solutions
Estimation / Section 07: Influences on Confidence Intervals
Hypothesis Testing
Hypothesis Testing / Section 01: Introduction
Hypothesis Testing / Section 02: Effect Sizes
Hypothesis Testing / Section 03: p-Values
Hypothesis Testing / Section 04: Sample Size and p-Values
Hypothesis Testing / Section 05: Cohen’s d and p-values
Hypothesis Testing / Section 06: The Logic of Hypothesis Testing
Hypothesis Testing / Section 07: Hypotheses
Hypothesis Testing / Section 08: Accuracy and Error
Hypothesis Testing / Section 09: Type I Errors
Hypothesis Testing / Section 10: Type II Errors
Hypothesis Testing / Section 11: The Meaning of Statistical Significance
Hypothesis Testing / Section 12: The One-Sample z-Test
t-Tests
t-Tests / Section 01: Introduction
t-Tests / Section 02: The One-Sample t-Test
t-Tests / Section 03: The Repeated Measures t-Test
t-Tests / Section 04: The Two-Sample t-Test
ANOVA
ANOVA / Section 01: Introduction
ANOVA / Section 02: Comparing Means
ANOVA / Section 03: Analyzing Variance
ANOVA / Section 04: Hypotheses
ANOVA / Section 05: Test Statistic and Distribution
ANOVA / Section 06: Post-Hoc Tests
ANOVA / Section 07: Effect Size
ANOVA / Section 08: Two-Way ANOVA
Correlation and Regression
Correlation and Regression / Section 01: The Correlation Coefficient
Correlation and Regression / Section 02: Regression
Correlation and Regression / Section 03: Regression Interpretation
Correlation and Regression / Section 04: Hypotheses and Effect Sizes
Chi-Squared
Chi-Squared / Section 01: Introduction
Chi-Squared / Section 02: The Goodness-of-Fit Test, Introduction
Chi-Squared / Section 03: Calculating Expected Frequencies for Equal Probabilities
Chi-Squared / Section 04: Expected Frequencies for Proportional Probabilities
Chi-Squared / Section 05: Calculating the Chi-Squared Goodness-of-Fit Test
Chi-Squared / Section 06: Expected Frequencies for the Test for Independence
Chi-Squared / Section 07: Calculating the Chi-Squared Test for Independence
Chi-Squared / Section 08: The Phi Coefficient