SurveyCTO Coding Practices
This article discuss solutions to common issues in the SurveyCTO programming language. For a general introduction to how to structure your approach to CAPI programming or best practices settings, see the Questionnaire Programming topic.
Read First
All coding examples linked to in this section are stored in Google Drive. SurveyCTO also allows you to pull this code directly to your server, using the URL of the Google Sheet (alternatively, you can copy the code to Excel).
Groups
Use a lot of groups but do not over use them. In general, groups are used to fulfill one of the purposes below:
- Apply a relevance condition to multiple fields.
- If you have multiple questions displayed at the same time.
- Frame all the questions on a module in group. Only do this at the highest level of the survey, i.e. do not use this for sub-levels of a module.
Repeat Groups
Repeat groups are a group that is repeated 1 or multiple times. This means that most properties that apply to a regular group, also applies to a repeat group.
Choice Lists
Choice lists are the answer options an enumerator can choose from in a select one or select multiple question. They are listed in the choices in the SurveyCTO questionnaire. While the programming language ODK that SurveyCTO builds on has very few restrictions on how you can code your options, there are choice list best practices that matters for data quality when using the data from these question in for example Excel.
The choice lists can also be dynamically populated by answers already given by the respondents.
Choice Filters
Preloading
Additional Resources
- list here other articles related to this topic, with a brief description and link