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--- en:create:waves [01.12.2020 22:11] – service
+++ en:create:waves [22.08.2022 09:36] – marco.franze
@@ Line 152: / Line 152: @@
   * Questionnaires that were created using SoSci Survey can usually be completed via smartphone, but for a MESM-study it is worth the effort to optimize the questionnaire for smartphones, among others with an optimized layout.
+==== Event-contingent measurement points ====
+The counterpart to experience sampling is that respondents call up a questionnaire independently when a specific event occurs. Ideally, they do not have to enter a personal code each time, but can use a personalized link directly. There are several ways to do this:
+  * You can use serial mail ([[:en:survey:mailing]]) to send personalized links that allow multiple completion of a questionnaire. To do this, set the option "Multiple completion with the personalized link allowed" in the //questionnaire link// tab for the //multiple participation// setting in the mail merge.
+  * You can also create links yourself that carry a marker and send them to respondents: [[:en:survey:url#mark_a_link_r|Mark a link]]. Note that in that case the pseudonym will appear in both the invitation and the dataset.
+----
+**Search terms:** panel, panel studies, experience sampling, ambulatory assessment.