Data Analysis with SPSS Lee Pierce Keith Mulbery Jason Archibald

Presentation Objectives Enter data. Type data within SPSS. Import data from other sources. Perform statistical calculations. Specify descriptive statistics. Create ANOVA tables. Create visual output. Create charts. Save output.

SPSS Pricing Student Pricing $79.95 (at USU bookstore w/ valid student ID) Academic Pricing (Colleges & Universities) $599 Corporate Pricing $1,145 Government Pricing $1,145 MS Excel (standalone, not with Office)

SPSS Editor Similar to Excel Can import data from numerous sources Excel Flat File (*.txt) Database Any Database that uses ODBC

SPSS Data Editor Similar in appeal to Excel

Excel Import Options

Data Imported from Excel

Sample Text for Import

Text Import Wizard

Database Import Wizard

SPSS Usage Define column names and types Similar to setting up a database in Access Define value labels for a more descriptive evaluation of data

SPSS Data Editor Similar in appeal to Excel Double-click to define variables.

Defining Column Types Name shows up in Data View Type more descriptive label here (shows up as ScreenTip)

Specifying Data Types Click in data type. Click box.

Defining Value Labels Click in Value cell. Click box. Enter value and value label.

View of Data Editor Using Labels Labels instead of 0 or 1 Click to view labels

Missing Data

Descriptive Statistics

Frequencies Double-click variable to add to list. Click Statistics to specify statistics to display.

Frequencies: Variable Information Right-click variable name. Choose Variable Information.

Measures of dispersion Measures of central tendency Frequencies: Statistics Similar options available through Analyze►Descriptives.

Output: General Window Contents Pane Outline Pane

Output: Statistics Note: No stats for categorical data (gender) Median and mean identical, indicating potential normal distribution

Output Statistics: Another Example Large difference between Mean and Median indicates that values are not normally distributed; check histogram for verification.

Output: Frequency Tables

Integration with Microsoft Word In SPSS: Select object. Choose Edit►Copy. In Word: Choose Edit►Paste Special. Choose Picture (Windows Metafile).

ANOVA

Total variance partitioned into 2 components: Between Groups Variation of group means around grand mean Within Groups Variation of individual means around their respective group means Difference of satisfaction between at least two groups of time on job

Other Valuable Statistics Various T Tests Regression

Graphing with SPSS Standard charts- Charts created from the main Graphs menu and charts created by statistical procedures. Interactive charts- Charts created from the Interactive sub- menu of the Graphs menu and charts created from pivot tables.

Pie Charts Select internet as the variable that defines slices

Pie Charts

Pie Charts - Modifying/Customizing

Pie Charts- Result After Modification

Interactive Charts

Interactive Bar Charts

Bar Charts Result Interactive Charts - Double click the chart to activate the chart within the viewer window.

Editing Interactive Charts

Interactive Chart From Pivot Table

Interactive Chart From Pivot Table - Result

Histograms

Pareto Charts

Control Charts

Saving Data Export document as HTML, Text or XML file. Export charts as.JPG,.BMP,.WMF, etc.

Saving Data Save document as SPSS, Excel, Tab-delimited, ASCII, dBase.

Saving Data

Help Statistics Coach Prompt questions and provide examples to help you choose statistical and charting features for YOUR data. Tutorial Provide visual tutorial examples and descriptions of SPSS capabilities. Sample SPSS files (*.sav) Use sample files to experiment with different types of data. C:\Program Files\SPSS\

Statistics Coach

Tutorial

Summary Data Variable specs and data entry Imported data Analysis Descriptive statistics ANOVA or t-test analysis Graphs Standard and interactive charts Powerful, yet easy, graphing functionality to meet variety of reporting needs Flexible data output

Homework Read the assigned article and answer the following two questions: 1- List the six data management capabilities of SPSS. 2- In your opinion, why would you need to utilize a statistical package such as SPSS instead of Excel? answers to by April This assignment may be completed as a group