Students who are hearing SPSS for the first time may not know that it is a statistical analysis software used for data mining, analysis, and forecasting. Through the statistical analysis, users can use a sample of data to make a prediction about a large number of units. Creating predictive models involves the utilization of available information to predict the possible outcomes in the near future. Predictive analysis is an important part of any organization as it helps you see the upcoming future and make quality decisions based on long-term planning.

Students who study SPSS may need a writing service to fully understand and write quality SPSS assignment writing help. Now let’s go to another concept of SPSS which is a decision tree. The decision tree creates a tree-based significant module and very important because they help to determine which predictors are strongly related to the targeted customers. The main purpose of creating a decision tree is to model a series of various events to find out how it affects the possible outcome. This type of module calculates on the basis of the set of probabilities on various conditions. In the following blog, you are going to learn how to create a simple predictive model with the help of CHAID analysis and how you can interpret the decision tree results. In the given example you will be predicting student enrolment in two different categories which mean analyzing students who got enrolled in the university and student who did not enroll.

Start Creating the Model

As you can see in the picture you have to start with the source tab and drag it to statistic file nod and after that import it to .sav from the local machine.

 

 

 

 

 

 

 

 

 

To view the data, drag in a table node and attach it to the statistical node on the canvas

 

 

 

 

Click run to see the table output.:

 

 

 

 

 

 

The next thing you need to do is read the data using a type node. The type node specifies data and the metadata for each field including the measurement level, role, and missing values. From the attached.

 

 

 

 

 

 

 

 

 

In the screenshot you can see that field enroll is your main target.

Next, you need to work on the CHAID node where CHAID stands for chi-square automatic interaction detection known as one of the most important popular decision tree modules. Behind the curtain, the model is running the chi-square many times. This surely makes some sense but essentially, the model is picking up predictors with a strong relationship with the outcome field which is determined by the field having the highest chi-square statistic. You will need SPSS homework assignment writing help to complete this process.

 

Make the necessary edits in the CHAID node and set the target correctly. In case, if you don’t want any predictors or inputs then, you can surely remove that from the model. Once you are ready to go just click on the Run icon in the corner to create the model.

 

 

 

 

 

 

 

 

 

 

If everything went well you will go well you will get the golden nugget. Just double-click on the nugget.

 

 

 

 

 

 

 

 

to see the result.

The overall process is long and time-consuming, something that can bother the student. BookMyEssay provides SPSS assignment help for students who are facing issues while creating an SPSS model for their assignment. Students can avail themselves of our affordable dissertation writing service for SPSS 24×7.