Statistics for social workers

TLDR: In this paper, the authors discuss the importance of selecting the correct statistical test to evaluate the effectiveness of a program and the importance to consider when selecting a statistical test when evaluating individual practitioners' effectiveness.

Abstract: All chapters conclude with "Concluding Thoughts" and "Study Questions" Preface 1 Introduction to Statistical Analysis Uses of Statistical AnalysisGeneral Methodological TermsLevels of MeasurementLevels of Measurement and Analysis of DataOther Measurement ClassificationsCategories of Statistical Analyses 2 Frequency Distributions and Graphs Frequency DistributionsGrouped Frequency DistributionsUsing Frequency Distributions to Analyze DataMisrepresentation of DataGraphical Presentation of DataA Common Mistake in Displaying Data 3 Central Tendency and Variability Central TendencyVariability 4 Normal Distributions Skewed DistributionsNormal DistributionsConverting Raw Scores to Z Scores and PercentilesDeriving Raw Scores From Percentiles 5 Introduction to Hypothesis Testing Alternative ExplanationsProbabilityRefuting Sampling ErrorResearch HypothesesTesting the Null HypothesisStatistical SignificanceErrors in Drawing Conclusions About RelationshipsStatistically Significant Relationships and Meaningful Findings 6 Sampling Distributions and Hypothesis Testing Sample Size and Sampling ErrorSampling Distributions and InferenceSampling Distribution of MeansEstimating Parameters From StatisticsOther Distributions 7 Selecting a Statistical Test The Importance of Selecting the Correct Statistical TestFactors to Consider When Selecting a Statistical TestParametric and Nonparametric TestsMultivariate Statistical TestsGeneral Guidelines for Test SelectionGetting Help With Data Analyses 8 Correlation Uses of CorrelationPerfect CorrelationsNonperfect CorrelationsInterpreting Linear CorrelationsUsing Correlation For InferenceComputation and Presentation of Person's RNonparametric AlternativesUsing Correlation With Three or More VariablesOther Multivariate Tests that Use Correlation 9 Regression Analyses What is Prediction?What is Simple Linear Regression?Computation of the Regression EquationMore About the Regression LineInterpreting ResultsUsing Regression Analyses in Social Work PracticeRegression With Three or More VariablesOther Types of Regression Analyses 10 Cross-Tabulation The Chi-Square Test of AssociationUsing Chi-Square in Social Work PracticeChi-Square With Three or More VariablesSpecial Applications of the Chi-Square Formula 11 t Tests and Analysis of Variance The Use of t TestsThe One-Sample t TestThe Dependent t TestThe Independent t TestSimple Analysis of Variance (One-Way Anova) Appendix A Using Statistics to Evaluate Practice Effectiveness Evaluating ProgramsEvaluating Individual Practitioner Effectiveness Glossary Index