I am running Limesurvey Version 2.06+ Build 160129.

When I export Limesurvey responses to SPSS, all multiple choice type questions which were not seen by the respondent have zero values. Can I set up the survey so the value is null if the question is not seen, either due to survey logic or attrition? Other types of questions have null values if not seen by the respondent.

Thank you.

This is fixed in 2.50 actually : github.com/LimeSurvey/LimeSurvey/commit/...e48db78e1bf65a3b4R48

You surely can apply same patch to your installation : github.com/LimeSurvey/LimeSurvey/commit/...4632d26516551b634879

(If you know a litle github and git, i'm happy to merge it in github.com/SondagesPro/LimeSurvey-SondagesPro