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Statistics for Social Workers, 9th edition

  • Robert W. Weinbach
  • , Richard M. Grinnell
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In this Section:
I) Brief Table of Contents
II) Detailed Table of Contents

I) Brief Table of Contents

1. Introduction
2. Frequency Distributions and Graphs
3. Measures of Central Tendency and Variability
4. Normal Distributions
5. Testing Hypotheses
6. Sampling Distributions
7. t Tests and Analysis of Variance
8. The Chi-Square Test of Association between Variables
9. Correlation
10. Regression
11. Other Ways That Statistical Analyses Contribute to Evidence-Based Practice




Useful Terms You Will Need to Know
Measurement iSSUES
Additional Measurement Classifications
Research Hypotheses
Classification of Variables and Their Relationship
Categories of Statistical Analyses
Statistics and data collection
Research designs and statistics


Frequency Distributions
Grouped Frequency Distributions
Using Frequency Distributions to Analyze Data
Misrepresentation of Data
Graphs
A Caution: Computer-generated graphs


Measures of Central Tendency
Measures of Variability
Other Uses for Central Tendency and Variability


Skewness
Kurtosis
The Normal Curve
The Standard Normal Distribution
Converting Raw Scores to z Scores and Percentiles
Deriving raw Scores From Percentiles


Alternative Explanations for Relationships Within Samples
Probability and Inference
Refuting Sampling Error
Statistical Significance
Testing the Null Hypothesis
Errors in Drawing Conclusions About Relationships
Statistically Significant Relationships and Meaningful Findings
The Hypothesis Testing process


Sample Size and Sampling Error
What are Sampling Distribution?
Rejection Regions and hypothesis testing
Estimating Parameters
Selecting Statistical Tests
Deciding Which Test to use


The use of t Tests
The One-sample t Test
The Dependent t Test
The Independent tTest
Misuse of t tests
Simple Analysis of Variance (Simple Anova)
Multivariate Analysis of Variance


When Chi-Square is Appropriate
Cross-Tabulation Tables
Using Chi-Square
When Chi-square is not appropriate
Using chi-square in social work practice
Cross-Tabulation With Three or More Variables
Special Applications of The Chi-Square Formula


Uses of Correlation
Scattergrams
Nonperfect Correlations
Interpreting Linear Correlations
Using Correlation for inference
Pearson'S r
Nonparametric Alternatives to Pearson'S r
Correlation With Three or More Variables
Other Multivariate analyses That use Correlation


Prediction and Evidence-Based Practice
Prediction and Statistical Analysis
What is Simple Linear Regression?
Computation of the Regression Equation
More About the Regression Line
Interpreting Results
Using regression in social work practice
When is regression analysis appropriate
Regression With Three or More Variables
Other Types of Regression Analyses


Meta-analyses
Program evaluations
Single-System designs

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