Apprendre le logiciel SPSS . Séance 1 : Comment créer des variables? #SPSS#spss_pasw#spss28

Introduction

This tutorial provides a comprehensive guide on creating variables in SPSS, an essential skill for data analysis and statistical work. Understanding how to create and manage variables in SPSS is crucial for organizing your data effectively and preparing it for analysis.

Step 1: Open SPSS and Access the Variable View

1. Launch the SPSS software on your computer.
2. In the main window, locate the tabs at the bottom of the screen and click on the Variable View tab. This view allows you to define and manage your variables.

Step 2: Create a New Variable

1. In the Variable View, navigate to the first empty row under the Name column.
2. Enter a name for your variable. Remember:
   • Variable names must start with a letter.
   • Avoid spaces and special characters; use underscores (_) instead.
3. Move to the Type column and click on the cell. A dialog box will appear allowing you to choose the variable type:
   • Numeric: For numerical data.
   • String: For text data.
   • Select the appropriate type and click OK.

Step 3: Define Variable Properties

1. After selecting the variable type, you can set additional properties:
   • Width: Define the number of characters or digits the variable can hold.
   • Decimals: Set the number of decimal places for numeric variables.
   • Label: Provide a more descriptive label for your variable, which can include spaces.
   • Values: If applicable, define value labels (e.g., 1 = Male, 2 = Female) by clicking on the cell and entering the values in the dialog box that appears.

Step 4: Set Measurement Levels

1. In the Measure column, determine the measurement level for your variable:
   • Nominal: For categorical data without a specific order.
   • Ordinal: For categorical data with a defined order.
   • Scale: For interval or ratio data.
2. Select the appropriate measurement level from the dropdown menu.

Step 5: Repeat for Additional Variables

1. To create more variables, repeat Steps 2 through 4 for each new variable you need.
2. Ensure each variable is clearly defined to facilitate data analysis later.

Conclusion

Creating variables in SPSS is a foundational skill for effective data management. By following these steps, you can set up your dataset correctly, allowing for smooth analysis and reporting. After creating your variables, consider exploring data entry and statistical analysis features in SPSS to further enhance your data analysis capabilities.