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CHAPTER 4.
The plot shows, as might be expected, a positive correlation where pupils
with higher intake scores tend to have higher outcome scores. We can fit a
simple linear regression to this relationship:
• Select the Equations menu item from the Model menu
• Click the Notation button
• In the Notation window, clear the box beside general
• Click Done
Now set up the model:
• Click on y in the Equations window
• In the Y variable window, select y: normexam
• Select N levels: 1-i
• Select level 1(i): student
• Click Done
• In the Equations window, click on the Add term button
• From the Specify term window’s variable drop-down list, select
standlrt
• Click Done
• Click the Estimates button
The Equations window now looks like this: