SPSS statistics - how to use SPSS

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SPSS statistics - how to use SPSS for research, analysis, and surveys. Includes instructions and examples of how to: define a data file and variables, correlation analysis, multiple response sets, creating and editing charts, and much, much more!

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  • PASW Statistics 17 (SPSS 17) INFORMATION TECHNOLOGY SERVICES California State University, Los Angeles www.youtube.com/mycsula Version 1.0 Winter 2010 Table of Contents Introduction Part 1...............................................................................................4 Downloading the Data Files....................................................................................4 Starting PASW Statistics........................................................................................4 The PASW Statistics Window................................................................................5 Data View.................................................................................................................5 Variable View..........................................................................................................6 Creating a Data File................................................................................................6 Defining Variables...................................................................................................6 Data Entry................................................................................................................8 Descriptive Statistics...............................................................................................9 Frequency Analysis.................................................................................................9 Crosstabs................................................................................................................11 Data Manipulation................................................................................................12 Select Cases............................................................................................................12 Splitting a File........................................................................................................14 Find and Replace...................................................................................................15 Reporting................................................................................................................16 Appendix................................................................................................................17 Introduction Part 2.............................................................................................18 Downloading the Data Files..................................................................................18 Null Hypothesis......................................................................................................18 Statistical Tests......................................................................................................19 Tests of Significance..............................................................................................19 For additional SPSS help, visit http://www.youtube.com/mycsula
  • Correlations...........................................................................................................19 Paired-Samples T Test..........................................................................................20 Independent-Samples T Test................................................................................22 Multiple Response Sets.........................................................................................23 Multiple Response Frequencies............................................................................24 Multiple Response Crosstabs...............................................................................25 Data Manipulation................................................................................................27 Copying and Pasting Variable Properties...........................................................27 Inserting Variables and Cases..............................................................................29 Deleting Variables and Cases...............................................................................30 Merging Data Files................................................................................................30 Creating the Data File for Merging.....................................................................30 Inputting the Data in Variable View...................................................................30 Merging the Data Files..........................................................................................32 Appendix................................................................................................................35 Introduction Part 3.............................................................................................37 Downloading the Data Files..................................................................................37 Simple Regression..................................................................................................37 Scatter Plot.............................................................................................................37 Predicting Values of Dependent Variables.........................................................39 Predicting This Years Sales with Simple Regression Model............................41 Multiple Regression...............................................................................................43 Predicting Values of Dependent Variables.........................................................43 Predicting This Years Sales with Multiple Regression Model.........................45 Data Transformation............................................................................................46 Computing..............................................................................................................46 Polynomial Regression..........................................................................................47 PASW Statistics 17 (SPSS 17), Part 1 2
  • Regression Analysis...............................................................................................48 Analyzing the Results............................................................................................48 Chart Editing.........................................................................................................49 Adding a Line to the Scatter Plot.........................................................................49 Manipulating the Scales on X- and Y-axes.........................................................50 Adding a Title to the Chart..................................................................................52 Adding Colors to the Chart..................................................................................53 Filling a Background Color..................................................................................54 Introduction Part 4.............................................................................................55 Downloading the Data Files..................................................................................55 Chi-Square.............................................................................................................55 Chi-Square Test for Goodness-of-Fit..................................................................55 With Fixed Expected Values................................................................................55 With Fixed Expected Values and within a Contiguous Subset of Values........58 With Customized Expected Values......................................................................59 One-Way Analysis of Variance............................................................................60 Post Hoc Tests........................................................................................................63 Two-Way Analysis of Variance............................................................................65 Importing/Exporting Microsoft Excel and PowerPoint.....................................68 Using Scripting for Redundant Statistical Analyses..........................................71 PASW Statistics 17 (SPSS 17), Part 1 3
  • Introduction Part 1 PASW stands for Predictive Analytics Software. This program can be used to analyze data collected from surveys, tests, observations, etc. It can perform a variety of data analyses and presentation functions, including statistical analysis and graphical presentation of data. Among its features are modules for statistical data analysis. These include 1) descriptive statistics, such as frequencies, central tendency, plots, charts, and lists; and 2) sophisticated inferential and multivariate statistical procedures, such as analysis of variance (ANOVA), factor analysis, cluster analysis, and categorical data analysis. PASW Statistics is particularly well-suited for survey research, though by no means is it limited to just this topic of exploration. This handout (Descriptive Statistics) introduces basic skills necessary to run PASW Statistics. It includes how to create a data file and run descriptive statistics. It is especially tailored to answer three research que