FAQ

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ID Question Categories Answer Level Visibility
95 What is an anonymous survey ? Conception de questionnaire

A survey is considered anonymous when the collected responses do not allow for direct or indirect identification of the participants. This means not collecting personally identifiable data and ensuring that the information collected cannot be cross-referenced to reveal a respondent's identity.

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96 Why is it important to ensure respondent anonymity ? Conception de questionnaire

Anonymity encourages honest and sincere responses, especially on sensitive topics. It also protects participants' privacy and builds trust in the survey process.

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97 What is the difference between anonymity and confidentiality ? Conception de questionnaire

L'anonymat encourage les réponses honnêtes et sincères, surtout sur les sujets sensibles. Il protège également la vie privée des participants et renforce la confiance dans le processus d'enquête.

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98 How to design a questionnaire ensuring anonymity ? Conception de questionnaire

  • Avoid collecting identifying information (name, address, phone number).

  • Use multiple-choice questions instead of free-text fields.

  • Group demographic data into broad categories (e.g., age ranges) to prevent indirect identification.

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99 Is it recommended to use free-text fields in an anonymous survey ? Conception de questionnaire

Free-text fields can unintentionally reveal a respondent's identity. If their use is necessary, inform participants of the potential risks and encourage them not to include personal information.

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101 What precautions should be taken when analyzing data ? Conception de questionnaire, Paramétrages, Analyse et exportation

When analyzing, avoid cross-referencing variables that could identify an individual, especially in small sample sizes.

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102 Is it possible to send personalized invitations while maintaining anonymity ? Conception de questionnaire, Paramétrages, Gestion des participants, RGPD

Yes, LimeSurvey allows you to send invitations with tokens while ensuring that responses remain anonymous, by dissociating the tokens from the collected responses.

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100 How to inform participants about survey anonymity ? Conception de questionnaire, Paramétrages, Bonnes pratiques, RGPD

Include a clear statement at the beginning of the questionnaire explaining that the survey is anonymous, that responses will be treated confidentially, and that the collected data will not allow for the identification of participants.

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103 How to handle post-survey follow-up or contact requests ? Paramétrages, Gestion des participants, Bonnes pratiques

If you wish to allow for follow-up while preserving anonymity, offer participants the option to voluntarily provide their contact details in a separate form, unrelated to their responses.

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104 What are the risks of re-identification and how can they be minimized? Paramétrages, Bonnes pratiques, RGPD

Even without directly identifiable data, combinations of responses can lead to the identification of an individual. To minimize this risk, limit the collection of sensitive data and use broad categories for demographic variables.

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107 Is there a way to make the hyperlinks mentioned in a questionnaire (survey) open in a new window? Paramétrages, Personnalisation

Yes, it is possible to have it open in a new window, and this is provided via the link creation tool.
The “Target” option allows you to do this with the _blank action.
In the window displayed, if you choose “New window (_blank)” in the Target tab, LimeSurvey will automatically add the HTML attribute target="_blank" to your link.
Specifically:
New window (_blank) → opens the link in a new tab or a new window (depending on the browser and its settings).

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108 What happens when I activate a survey ? Conception de questionnaire, Paramétrages, Bonnes pratiques

Once activated, the structure (groups, question types) is locked.
You can still:

  • Edit text

  • Change certain minor settings
    Important: To make structural changes (add a group, change a question type), you must duplicate the survey and activate the new copy.

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109 Can I reuse a survey for a new session ? Conception de questionnaire, Paramétrages

Yes — export it in .lss format, then import it into a new, empty survey.
Tip: This keeps all the questions intact but without previous responses.

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110 How can I prevent participants from skipping important questions ? Conception de questionnaire, Paramétrages, Gestion des participants, Personnalisation

In each question, set Mandatory = Yes and, if needed, add Validation to enforce a specific format.

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111 What should I do if my survey is slow or fails to save ? Paramétrages, Problèmes fréquents et dépannage, Bonnes pratiques

  • Reduce the number of questions per group.

  • Avoid overly complex or nested conditional logic.

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112 Can I test condition logic before publishing ? Conception de questionnaire, Paramétrages

Yes.
Use Preview survey to simulate navigation and Show conditions in the question editor to review applied filters.

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113 How can I send reminders only to participants who haven’t responded ? Conception de questionnaire, Paramétrages, Gestion des participants, Personnalisation

In the Participants tab, use Send reminder with the filter “Have not yet responded”.

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114 How can I allow participants to save their progress ? Conception de questionnaire, Paramétrages, Gestion des participants, Personnalisation

Enable Save & Resume in the survey settings.
A “Resume later” button will then be available to respondents.

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43 How to Test My Survey Before Publishing It ? Conception de questionnaire, Introduction à LimeSurvey

Use the "Preview" function to test your survey and ensure everything works as expected before making it public.

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34 How to Use Conditions and Logic Expressions ? Conception de questionnaire, Paramétrages, Personnalisation
  • Show/hide questions based on previous answers.
  • Perform dynamic calculations.
  • Customize messages based on participant choices.
  • ...
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33 What Question Types Are Available in LimeSurvey ? Conception de questionnaire, Introduction à LimeSurvey, Paramétrages, Personnalisation

 

  • Single/Multiple choice
  • Rating scales (Likert)
  • Open text (short and long)
  • Matrices
  • File upload
  • Logic questions (conditional)
  • ...
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