10:48
Nominal, Ordinal, Interval, & Ratio Scales of Measurement
PsychExamReview
8:04
The Ordinal vs. Interval Debate in Psychology
10:56
Understanding Central Tendency
5:40
How to Find the Precise Median (Interpolated Median)
2:20
Dispersion for Nominal Data: The Variation Ratio
5:04
Dispersion: Range, Interquartile Range, & Semi-Interquartile Range
3:59
Inclusive vs. Exclusive Interquartile Range
6:52
How to Use Interquartile Range to Identify Outliers
12:42
Mean Absolute Deviation, Variance, & Standard Deviation
14:18
Dividing By n-1 Explained
11:40
How to Interpret (and Create) Frequency Distribution Tables
10:19
Exploratory Data Analysis: Stem-and-Leaf Displays
21:17
Exploratory Data Analysis: Box and Whisker Plots
11:33
Histograms & Frequency Polygons
10:22
Skewness - Positive & Negative Skew
9:01
Skewness: Floor & Ceiling Effects
19:21
How to Calculate Skew
12:56
What is Kurtosis?
9:34
How Are Moments Used in Statistics?
20:00
What is a Probability Density Function?
16:36
The Standard Normal Curve, Empirical Rule, & Z-Scores
How to Use a Z Table (Standard Normal Table)
12:02
The Logic of Null Hypothesis Significance Testing (NHST)
