PsychData supports multiple approaches to building multilingual surveys. You may use whichever method best fits your workflow.
Respondents will see the survey in English, as it is the automatic default language. If their browser is configured for another language and you have provided a matching translation, the survey will automatically display in that language.
If respondents prefer a different language, they can select it from the language dropdown at the top of the survey. This dropdown will only appear when all language columns in the Translations tab include a title.