Add a Missing Value Definition

Overview

A missing value is used to indicate that the question was not missed but there is no data for the question.  The form will show complete, however, the missing value by default will be excluded from data analyis, with an option to include the missing values.

Required Role(s)

• Project Management
  

Steps

1. Select Projects in the main menu
2. Click on the project name
3. Select the Variable Groups tab in the left selector panel
4. Click on the form/variable group name which contains the variable
5. Select the *Variable *tab in the left selector panel
6. Click on the variable name
7. In the Variable Update window, select the Missing Values tab
8. Click on the green + icon to add a missing value
9. Enter a Begin Value, End Value and Name

   The Begin Value and End Value can be the same

   
   

   Be sure the missing value can never be an actual data point

10. Select Continue
11. Select Save or Save and Return to save the changes to the variable group