Descripciones mejoradas de Syndetics:

Written by social workers for social work students, Statistics for Social Workers, 4/e, focuses on the kinds of statistical analysis most often used by social workers. As a result, students are able to use statistics in their everyday work in order to become more effective practitioners. Weinbach & Grinnell avoid the heavy use of mathematical formulae & present statistics in a highly accessible, user-friendly format that helps students understand, appreciate, & make use of statistics in refining their helping skills. NEW FEATURES- * New chapter on sampling distributions & expanded coverage of hypothesis testing. * Additional case examples throughout the text vividly illustrate concepts & provide students with a useful point of reference for understanding statistics. * Reorganized material to reflect the relationship between bivariate & multivariate analysis. CONTENTS 1. Introduction 2. Frequency Distributions & Graphs 3. Central Tendency & Variability 4. Normal Distributions 5. Introduction to Hypothesis Testing 6. Sampling Distributions & Hypothesis Testing 7. Selecting Statistical Tests 8. Correlation 9. Simple Linear Regression 10. Cross-Tabulation 11. t Tests & Analysis of Variance 12. Additional Parametric & Multivariate Tests References & Further Reading Glossary Appendices Index

Tabla de contenidos provista por Syndetics

• All chapters conclude with "Concluding Thoughts" and "Study Questions
• "Preface
• 1 Introduction to Statistical Analysis
• Uses of Statistical Analysis
• General Methodological Terms
• Levels of Measurement
• Levels of Measurement and Analysis of Data
• Other Measurement Classifications
• Categories of Statistical Analyses
• 2 Frequency Distributions and Graphs
• Frequency Distributions
• Grouped Frequency Distributions
• Using Frequency Distributions to Analyze Data
• Misrepresentation of Data
• Graphical Presentation of Data
• A Common Mistake in Displaying Data
• 3 Central Tendency and Variability
• Central Tendency
• Variability
• 4 Normal Distributions
• Skewed Distributions
• Normal Distributions
• Converting Raw Scores to Z Scores and Percentiles
• Deriving Raw Scores From Percentiles
• 5 Introduction to Hypothesis Testing
• Alternative Explanations
• Probability
• Refuting Sampling Error
• Research Hypotheses
• Testing the Null Hypothesis
• Statistical Significance
• Errors in Drawing Conclusions About Relationships
• Statistically Significant Relationships and Meaningful Findings
• 6 Sampling Distributions and Hypothesis Testing
• Sample Size and Sampling Error
• Sampling Distributions and Inference
• Sampling Distribution of Means
• Estimating Parameters From Statistics
• Other Distributions
• 7 Selecting a Statistical Test
• The Importance of Selecting the Correct Statistical Test
• Factors to Consider When Selecting a Statistical Test
• Parametric and Nonparametric Tests
• Multivariate Statistical Tests
• General Guidelines for Test Selection
• Getting Help With Data Analyses
• 8 Correlation
• Uses of Correlation
• Perfect Correlations
• Nonperfect Correlations
• Interpreting Linear Correlations
• Using Correlation For Inference
• Computation and Presentation of Person's R
• Nonparametric Alternatives
• Using Correlation With Three or More Variables
• Other Multivariate Tests that Use Correlation
• 9 Regression Analyses
• What is Prediction?
• What is Simple Linear Regression?
• Computation of the Regression Equation
• More About the Regression Line
• Interpreting Results
• Using Regression Analyses in Social Work Practice
• Regression With Three or More Variables
• Other Types of Regression Analyses
• 10 Cross-Tabulation
• The Chi-Square Test of Association
• Using Chi-Square in Social Work Practice
• Chi-Square With Three or More Variables
• Special Applications of the Chi-Square Formula
• 11 t Tests and Analysis of Variance
• The Use of t Tests
• The One-Sample t Test
• The Dependent t Test
• The Independent t Test
• Simple Analysis of Variance (One-Way Anova)
• Appendix A
• Evaluating Programs
• Evaluating Individual Practitioner Effectiveness
• Glossary
• Index