When a Binary - Grid variable set has open-ended responses, there will be one Text variable for each part of the grid. For example, a brand image question may have a Text variable for each brand, where the respondents have provided additional images for each. The open-ended responses can be combined with the main data from the question using Back Coding.
Requirements
The open-ended responses can be combined with the main data from the question using Back Coding. The process requires two things:
- The Binary - Grid variable set is first split up into a set of Binary - Multi variable sets, with one variable set corresponding to each of the Text variables containing the open-ended responses. In the brand image example, this would mean one Binary - Multi variable set for each brand.
- The open-ended responses are separated Text questions and NOT combined into a Text - Multi.
Method
Starting with a Binary - Grid variable set, the steps are as follows:
- Make a copy of the variables from the grid by highlighting the variables in the Data Sources tree, right-clicking, and selecting Duplicate.
- Make a new Binary - Multi variable set for the variables corresponding to each of the open-ended response variables by selecting those variables, right-click > Combine.
- On the Object Inspector
, the Data > Structure should be set to Binary - Multi.
- Make sure that the variable labels from the new Binary - Multi variable sets are identical.
- Select the text variables for the open-ended responses in the Data Sources tree and click + > Text Categorization.
- Select Multiple themes
- Click Start.
- Select Inputs and Back Coding.
- For each row, select the appropriate question in the Corresponding back-coding variables section and click OK.
- Code the responses as normal. See How to Classify Text Data for more details.