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Research Methods and Statistics: An Introduction

Importance of Statistics and Understanding Basic Concepts
Introduction to Research Methodology and Statistical Reasoning
Preview
Population and Sample
Research Problem and Hypothesis
Variables
Quiz: Importance of Statistics and Understanding Basic Concepts
Research Methods and Design
The Experimental Method
Quiz: The Experimental Method
Between Subjects or Independent Groups Design
Quiz: Between Subjects or Independent Groups Design
Repeated Measures or Within Subjects Design
Quiz: Repeated Measures or Within Subjects Design
Complex/Factorial Design
Quiz: Complex/Factorial Design
Non-Experimental Design
Quasi-Experimental or Natural Groups Design
Quiz: Non-Experimental, Quasi-Experimental, and Natural Groups Design
Observational Methods: Types
Data Analyses of Observational and Descriptive Data
Case Study
Survey Research
Quiz: Observational Methods, Case Study, Survey Research
Choosing the Right Research Method
Normal Curve and its Importance in Choosing a Statistic
Normal Curve and its Properties
Skewness, Kurtosis and Tests of Normality
Quiz: Normal Curve and its Importance in Choosing a Statistic
Steven's Levels of Measurement
Nominal Scale
Ordinal Scale
Interval Scale
Ratio Scale
Quiz: Stevens' Levels of Measurement
Descriptive Statistics
Descriptive Statistics: An Overview
Measures of Central Tendency: Mean
Measures of Central Tendency: Median, Mode
Measures of Variability or Dispersion: Range
Measures of Variability or Dispersion: Quartile Deviation
Measures of Variability or Dispersion: Variance
Measures of Variability or Dispersion: Standard Deviation
Quiz: Descriptive Statistics
Inferential Statistics
Inferential Statistics: An Overview
Null Hypothesis Testing
Statistical Significance Testing
One-Tailed and Two-Tailed Tests
Degrees of Freedom
Quiz: Inferential Statistics
Confidence Interval
Quiz: Degrees of Freedom and Confidence Intervals
Parametric Tests
Parametric Statistics: An Overview
Quiz: Parametric Statistics
t-Tests
Quiz: Tests
Analysis of Variance (ANOVA): Part 1
Analysis of Variance (ANOVA): Part 2, Post Hoc Tests
Quiz: Analysis of Variance
Regression: Simple and Multiple
Quiz: Regression: Simple and Multiple
Correlation: An Overview
Pearson's Product Moment Correlation
Quiz: Correlation
Outliers
Dealing with Outliers
Non-Parametric Tests
Non-Parametric Tests: Descriptions and Assumptions
Chi-Square Test
Sign Test
Wilcoxon's Sign Rank Test
Median Test
Mann-Whitney U Test
Kruskal Wallis Test and Friedman's Two-Way ANOVA
Spearman's Rank Order Correlation
Quiz: Non-Parametric Tests
Interpreting a Statistic
Factors Related to Interpreting a Statistic
Errors Made during Interpretation
Effect Size and Practical Significance
Quiz: Interpreting a Statistic
Common Errors and Biases when Using Statistics
Sources of Bias
Errors in Methodology
Quiz: Common Errors and Biases when Using Statistics
Software for Statistical Computations
Statistical Package for Social Sciences: SPSS
R
PSPP
Quiz: Software for Statistical Computations
Notes: Research Methdology and Statistical Reasoning

Measures of Variability or Dispersion: Quartile Deviation

Research Methods and Statistics: An Introduction Descriptive Statistics
By: Monk Prayogshala
4 minutes
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