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Introduction Although SPSS stands for “Statistical Package for the Social Sciences,” this software is now widely used for data analysis and report generation across disciplines. SPSS for Windows or Mac OS features a spreadsheet- like data editor, integrated graphics, GUI interface, data management facilities (the number of variables and cases it can handle is limited only by the amount of RAM and disk space available), and comprehensive statistical procedures. SPSS typically stores data in its own proprietary format. A SPSS dataset saved from versions 10 or 11.x will have a file extension of .sav. Some other file types can also be read in — such as SPSS portable files, various SAS formats, SYSTAT formats, dBase, MS Excel spreadsheets, Lotus spreadsheets, .txt and .dat. Creating a New Dataset in SPSS There are many ways to input the data you want to analyze. You can open existing SPSS data sets, open data from non-SPSS sources, or type in the values yourself. The data are displayed in a data table in which columns correspond to variables and rows correspond to cases. You can edit individual elements in the data table, and you can create new variables. 1. To define the variables in the Data Editor, click on the Variable View tab at the lower left. 2. For the first variable, type in the variable name id and press the tab key. 3. The default type for a variable in SPSS is numeric with a width of 8 and 2 decimal places, but click in the cells and change these values as shown below. When you get to the variable named sex, you will find that SPSS will not allow you to change the Width to 1 until after you’ve changed the Decimals to 0. Entering Data Values from Data View Generally, you start entering data in the first cell (upper left corner), typing in one data value at a time and pressing the tab key after each. This moves the next entry point across to the next variable (column) on the same case (row). This would be the way you would want to enter data if you were taking it right off the survey. However, if you have the numbers already laid out in columns like we do here, you may find it easier to enter all the cases for one variable at a time. You do that by pressing the Enter key instead of the tab key.
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