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# Our Guide on SPSS Test for Linearity

• Researchers would like to make a spss test for linearity especially on the linear regression analysis execution. When we say linearity, it indicates that x and y are associated by y=cx mathematical equation. The c is a constant value.

## The Test for Linearity in SPSS

Numerous statistical methods necessitate a linearity of data assumption, like a population sample that is interconnected with linear fashion variables, which is important in testing the linearity in spss. This implies that linearity test should be executed before utilizing linear regression and other common methods.

To observe the data arriving possibility from a linear population, the SPSS is used. This is a powerful and useful statistical instrument in implementing spss test for linearity. To come up with the test of linearity, work with the SPSS function through scatterplot testing methods. In this post, we will tackle how to test for linearity in spss. We have consolidated important and specific instructions for you to implement the SPSS test for linearity. Image credit:www.ru.nl

## Instructions in SPSS Test for Linearity

1. Open the SPSS data file and manually input your data in the SPSS by entering the information in the data editor spreadsheet. Grab this spreadsheet on the SPSS file menu by clicking the open file button. Starting from the top input on each row the point of data.
2. Go to menu and click graphs. Select scatter and the scatterplot menu will appear.
3. After opening the box, select “simple”.
4. Begin creating the scatterplot by choosing the test for linearity variables in the “simple scatterplot” box. Select the y and x variables. In testing the linearity, either x and y can be used but use y as the dependent variable. This is usually the standard method on this procedure.
5. After clicking the left menu for the variable, click the arrow to the right that points to the y axis. Do the same for the x variable by selecting the left menu variable and choosing arrow pointing at x axis to the right.
6. After entering the x and y variables, click okay in the simple scatterplot. You are now creating your scatterplot.
7. In an oval shape, the linearity of data points are arranged and displayed. By this structure, you can see the resulting plot for linearity. If you observed other shape than an oval, you have a non-linear data. The population is not parallel with the variable terms you are evaluating. If this happens, you failed the test of linearity.

SPSS may be complex at first glance. But it can be work out and practiced. It is a wide-ranging system for data analysis. This can work on any type of file and information in report’s tabulation, plots, trends, and charts.

You may not be familiar with manova spss output interpretation SPSS test for linearity yet or you don’t know how to run path analysis in spss, but allow us to discuss and provide the right understanding of the methods and process of linearity in spss.

### Follow the above processes and you’ll get the essence of SPSS test for linearity! 