# Latest **URL:** https://forum.surveyengine.com/latest.md?page=3 [Latest](https://forum.surveyengine.com/latest.md) · [Categories](https://forum.surveyengine.com/categories.md) · [Tags](https://forum.surveyengine.com/tags.md) **Page:** 4 --- ## [After choosing an option, the answer cannot be answered again](https://forum.surveyengine.com/t/after-choosing-an-option-the-answer-cannot-be-answered-again/218)
**Author:** [@aceballos](https://forum.surveyengine.com/u/aceballos)\ **Replies:** 1\ **Last updated:** [16 January 2025 09:10 UTC](https://forum.surveyengine.com/t/after-choosing-an-option-the-answer-cannot-be-answered-again/218 "2025-01-16T09:10:08Z")
I want that my dce experiment once the surveyers choose one option they cannot be able to select again or change it --- ## [Experiment were choice card doesn't change levels](https://forum.surveyengine.com/t/experiment-were-choice-card-doesnt-change-levels/215)
**Author:** [@aceballos](https://forum.surveyengine.com/u/aceballos)\ **Replies:** 1\ **Last updated:** [16 January 2025 09:02 UTC](https://forum.surveyengine.com/t/experiment-were-choice-card-doesnt-change-levels/215 "2025-01-16T09:02:51Z")
I am creating a survey where the respondents needs to choose an already balanced choice cards (a total of 10) with 2 options and a status quo. While creating the experiment on surveyengine I notice the options and level… --- ## [Validation in Matrix Question](https://forum.surveyengine.com/t/validation-in-matrix-question/211)
**Author:** [@yifeiwu](https://forum.surveyengine.com/u/yifeiwu)\ **Replies:** 1\ **Last updated:** [4 December 2024 15:23 UTC](https://forum.surveyengine.com/t/validation-in-matrix-question/211 "2024-12-04T15:23:51Z")
Hi! I’m inquiring about validation for matrix questions. Is it possible to add a validation rule for each row of the matrix? For instance, in the matrix below, the only valid response for the four questions is “Yes-No-No… --- ## [Preventing bots](https://forum.surveyengine.com/t/preventing-bots/77)
**Author:** [@Freddo](https://forum.surveyengine.com/u/Freddo)\ **Replies:** 2\ **Last updated:** [17 September 2024 08:49 UTC](https://forum.surveyengine.com/t/preventing-bots/77 "2024-09-17T08:49:03Z")
How can I prevent fraud/bots filling in my survey? --- ## [Multiple Draws without Replacement](https://forum.surveyengine.com/t/multiple-draws-without-replacement/202)
**Author:** [@olivia.barnes44](https://forum.surveyengine.com/u/olivia.barnes44)\ **Replies:** 1\ **Last updated:** [16 September 2024 07:43 UTC](https://forum.surveyengine.com/t/multiple-draws-without-replacement/202 "2024-09-16T07:43:14Z")
Hi! I am creating a rather complex survey, which requires multiple layers of randomisation, and wondered if anyone could help me figure out how to do this! I have 8 DCEs, forming 8 different treatment conditions. Each … --- ## [Using ngene experiment builder](https://forum.surveyengine.com/t/using-ngene-experiment-builder/193)
**Author:** [@dojo1899](https://forum.surveyengine.com/u/dojo1899)\ **Replies:** 1\ **Last updated:** [15 August 2024 07:04 UTC](https://forum.surveyengine.com/t/using-ngene-experiment-builder/193 "2024-08-15T07:04:33Z")
What is the meaning of a scenario in sample size estimate? How can I change the number of scenarios for a given experiment? And how can I change the number of rows for a given experiment? --- ## [Formatting a forced choice following a DCE choice set with an opt-out option](https://forum.surveyengine.com/t/formatting-a-forced-choice-following-a-dce-choice-set-with-an-opt-out-option/155)
**Author:** [@psd\_donnelly](https://forum.surveyengine.com/u/psd_donnelly)\ **Replies:** 3\ **Last updated:** [11 January 2024 16:33 UTC](https://forum.surveyengine.com/t/formatting-a-forced-choice-following-a-dce-choice-set-with-an-opt-out-option/155 "2024-01-11T16:33:24Z")
Hello, In my survey, I have included a third alternative in the DCE which acts as an opt-out. Should participants choose this alternative/the opt-out, I would like to follow up with a question on the same choice task wh… --- ## [Adding a choice scenario before each choice task](https://forum.surveyengine.com/t/adding-a-choice-scenario-before-each-choice-task/162)
**Author:** [@psd\_donnelly](https://forum.surveyengine.com/u/psd_donnelly)\ **Replies:** 1\ **Last updated:** [11 January 2024 16:31 UTC](https://forum.surveyengine.com/t/adding-a-choice-scenario-before-each-choice-task/162 "2024-01-11T16:31:54Z")
Hello, I was wondering if there is a way to include a choice scenario (e.g. “You are at your doctors…”) on the same page as each choice task? If I include a text section on the same page as the experiment, it does not a… --- ## [Can I format scenarios?](https://forum.surveyengine.com/t/can-i-format-scenarios/82)
**Author:** [@Freddo](https://forum.surveyengine.com/u/Freddo)\ **Replies:** 1\ **Last updated:** [13 February 2023 22:45 UTC](https://forum.surveyengine.com/t/can-i-format-scenarios/82 "2023-02-13T22:45:40Z")
How to format DCE scenarios? --- ## [Multiple branches for one question](https://forum.surveyengine.com/t/multiple-branches-for-one-question/159)
**Author:** [@rajwane](https://forum.surveyengine.com/u/rajwane)\ **Replies:** 6\ **Last updated:** [9 November 2023 15:16 UTC](https://forum.surveyengine.com/t/multiple-branches-for-one-question/159 "2023-11-09T15:16:07Z")
I have a question at the beginning of my survey with multiple options. According to the answers of the respondents, they should be redirected to different questions. Is it possible to use multiple branches for one ques… --- ## [Using Decks to create Treatment and Control Group](https://forum.surveyengine.com/t/using-decks-to-create-treatment-and-control-group/145)
**Author:** [@Ernie](https://forum.surveyengine.com/u/Ernie)\ **Replies:** 3\ **Last updated:** [9 November 2023 14:35 UTC](https://forum.surveyengine.com/t/using-decks-to-create-treatment-and-control-group/145 "2023-11-09T14:35:57Z")
Hi, I want my survey to split the respondents into two equal parts after the first 2-3 pages. Group 1 and Group 2 should receive different experiments. I think this is done with either decks or segments but couldn’t fi… --- ## [Implementing a 'save & return' feature](https://forum.surveyengine.com/t/implementing-a-save-return-feature/151)
**Author:** [@psd\_donnelly](https://forum.surveyengine.com/u/psd_donnelly)\ **Replies:** 7\ **Last updated:** [14 September 2023 14:21 UTC](https://forum.surveyengine.com/t/implementing-a-save-return-feature/151 "2023-09-14T14:21:07Z")
Hello. I’m wondering how to implement a ‘save & return’ function within the survey? --- ## [Panel invitations](https://forum.surveyengine.com/t/panel-invitations/152)
**Author:** [@Bob123](https://forum.surveyengine.com/u/Bob123)\ **Replies:** 1\ **Last updated:** [10 July 2023 12:53 UTC](https://forum.surveyengine.com/t/panel-invitations/152 "2023-07-10T12:53:27Z")
Dear SurveyEngine colleagues, I am ready to launch my survey but my survey panel company is having some issues identifying respondents their end through their provided passbacks, but I can see the data fine in SurveyEng… --- ## [Understanding error status of simulations](https://forum.surveyengine.com/t/understanding-error-status-of-simulations/136)
**Author:** [@Bob123](https://forum.surveyengine.com/u/Bob123)\ **Replies:** 1\ **Last updated:** [4 July 2023 15:02 UTC](https://forum.surveyengine.com/t/understanding-error-status-of-simulations/136 "2023-07-04T15:02:18Z")
Hi, I have previously run simulations on my experiment with no problem. However, I recently embedded a Vimeo video on one page and now the simulation does not complete which I guess is caused by the video. I receive th… --- ## [Constraining alternatives in the SP](https://forum.surveyengine.com/t/constraining-alternatives-in-the-sp/143)
**Author:** [@Krishna](https://forum.surveyengine.com/u/Krishna)\ **Replies:** 1\ **Last updated:** [4 July 2023 14:59 UTC](https://forum.surveyengine.com/t/constraining-alternatives-in-the-sp/143 "2023-07-04T14:59:43Z")
I have an attribute with three levels, lets say 1, 2 and 3. And two options for the respondent to select, A and B. How can I constrain the levels so that levels 1 and 2 are always displayed, at least once, among option A… --- ## [Tutorial 32 Pivot Design - Adding a % increase from RP answer to level of attribute](https://forum.surveyengine.com/t/tutorial-32-pivot-design-adding-a-increase-from-rp-answer-to-level-of-attribute/142)
**Author:** [@Krishna](https://forum.surveyengine.com/u/Krishna)\ **Replies:** 1\ **Last updated:** [4 July 2023 14:44 UTC](https://forum.surveyengine.com/t/tutorial-32-pivot-design-adding-a-increase-from-rp-answer-to-level-of-attribute/142 "2023-07-04T14:44:43Z")
I have been trying to follow tutorial 32, specifically the second part - where I am trying to use the answers from the earlier part of the survey (Revealed preference), and trying to increase that by a defined % in the S… --- ## [Changing ID Parameter](https://forum.surveyengine.com/t/changing-id-parameter/148)
**Author:** [@MissKitty](https://forum.surveyengine.com/u/MissKitty)\ **Replies:** 1\ **Last updated:** [4 July 2023 14:39 UTC](https://forum.surveyengine.com/t/changing-id-parameter/148 "2023-07-04T14:39:25Z")
Does anyone know how I change the ID parameter on an invitation link? Every time I go to change it, it just adds the new parameter on to the old parameter at the end of the link. --- ## [Participant screening | Screen out using display condition for multiple choice questions](https://forum.surveyengine.com/t/participant-screening-screen-out-using-display-condition-for-multiple-choice-questions/146)
**Author:** [@Bob123](https://forum.surveyengine.com/u/Bob123)\ **Replies:** 3\ **Last updated:** [4 July 2023 09:38 UTC](https://forum.surveyengine.com/t/participant-screening-screen-out-using-display-condition-for-multiple-choice-questions/146 "2023-07-04T09:38:21Z")
Hi, At the start of my DCE I would like to screen my participants with a question similar to the following: Have you or a family member experienced disease X: \[1\] Yes, I have / had disease X - screen in \[2\] Yes, a fa… --- ## [Adding Mouseover text](https://forum.surveyengine.com/t/adding-mouseover-text/54)
**Author:** [@Freddo](https://forum.surveyengine.com/u/Freddo)\ **Replies:** 4\ **Last updated:** [28 June 2023 23:33 UTC](https://forum.surveyengine.com/t/adding-mouseover-text/54 "2023-06-28T23:33:35Z")
How can I implement the mouse-over feature? --- ## [Conducting a split-sample (split ballot) experiment](https://forum.surveyengine.com/t/conducting-a-split-sample-split-ballot-experiment/138)
**Author:** [@Bob123](https://forum.surveyengine.com/u/Bob123)\ **Replies:** 1\ **Last updated:** [12 June 2023 16:20 UTC](https://forum.surveyengine.com/t/conducting-a-split-sample-split-ballot-experiment/138 "2023-06-12T16:20:40Z")
Hi, Is there a simple way in SurveyEngine to implement a split-sample whereby 50% of respondents receive one experiment (DCE) and the other 50% receive a very similar experiment (e.g., the same experimental design) but … --- ## [Embedding video | How to prevent survey from forcing respondents to watch entire video (allow skip)](https://forum.surveyengine.com/t/embedding-video-how-to-prevent-survey-from-forcing-respondents-to-watch-entire-video-allow-skip/137)
**Author:** [@Bob123](https://forum.surveyengine.com/u/Bob123)\ **Replies:** 2\ **Last updated:** [12 June 2023 15:52 UTC](https://forum.surveyengine.com/t/embedding-video-how-to-prevent-survey-from-forcing-respondents-to-watch-entire-video-allow-skip/137 "2023-06-12T15:52:04Z")
Hi, In my initial survey pages (instructions) I have two options for respondents: (1) watch a short video on how to complete the tasks; (2) or read the information instead. Using the SurveyEngine tutorial, I have succe… --- ## [Drag and drop, use of previous response to do a pivot randomization](https://forum.surveyengine.com/t/drag-and-drop-use-of-previous-response-to-do-a-pivot-randomization/132)
**Author:** [@T-Squared](https://forum.surveyengine.com/u/T-Squared)\ **Replies:** 1\ **Last updated:** [12 June 2023 05:19 UTC](https://forum.surveyengine.com/t/drag-and-drop-use-of-previous-response-to-do-a-pivot-randomization/132 "2023-06-12T05:19:28Z")
Hello, Section 1: In our survey we have a section where we present to the respondents a list of 13 attributes and we want them to choose the 5 attributes that are the most important for them (using the drag and drop). H… --- ## [Discrete continuous choice experiment](https://forum.surveyengine.com/t/discrete-continuous-choice-experiment/134)
**Author:** [@Gerrit](https://forum.surveyengine.com/u/Gerrit)\ **Replies:** 1\ **Last updated:** [12 June 2023 05:16 UTC](https://forum.surveyengine.com/t/discrete-continuous-choice-experiment/134 "2023-06-12T05:16:00Z")
How can I conduct a discrete continuous choice experiment? We ask respondents to decide how many days they would like to work from home or office in different scenarios. So we need the possibility not only to select one … --- ## [Matrix formating](https://forum.surveyengine.com/t/matrix-formating/131)
**Author:** [@T-Squared](https://forum.surveyengine.com/u/T-Squared)\ **Replies:** 2\ **Last updated:** [8 May 2023 14:06 UTC](https://forum.surveyengine.com/t/matrix-formating/131 "2023-05-08T14:06:36Z")
Hello, is it possible to format a matrix of single choice with levels (or options) in rows and attributes in columns to allow single choice by column (knowing that the default presentation just allows single choice by ro… --- ## [How to randomise the order of two different choice experiments?](https://forum.surveyengine.com/t/how-to-randomise-the-order-of-two-different-choice-experiments/129)
**Author:** [@MissKitty](https://forum.surveyengine.com/u/MissKitty)\ **Replies:** 1\ **Last updated:** [5 May 2023 08:32 UTC](https://forum.surveyengine.com/t/how-to-randomise-the-order-of-two-different-choice-experiments/129 "2023-05-05T08:32:53Z")
I have two choice experiments in my survey. The respondent sees six scenarios related to experiment A, completes a random task, and then sees a second six scenario experiment B. I’d like to randomise which experiment (A … --- ## [Splitting scenario and product attributes in html table for respondents](https://forum.surveyengine.com/t/splitting-scenario-and-product-attributes-in-html-table-for-respondents/122)
**Author:** [@Bob123](https://forum.surveyengine.com/u/Bob123)\ **Replies:** 7\ **Last updated:** [27 April 2023 11:32 UTC](https://forum.surveyengine.com/t/splitting-scenario-and-product-attributes-in-html-table-for-respondents/122 "2023-04-27T11:32:47Z")
Dear SurveyEngine colleagues, Background - my DCE has 5 attributes: 2 are scenario attributes (about the individual) and 3 are product attributes. After pilot testing, it has become apparent that some respondents to my… --- ## [Formatting attribute names](https://forum.surveyengine.com/t/formatting-attribute-names/121)
**Author:** [@Bob123](https://forum.surveyengine.com/u/Bob123)\ **Replies:** 3\ **Last updated:** [29 March 2023 01:14 UTC](https://forum.surveyengine.com/t/formatting-attribute-names/121 "2023-03-29T01:14:41Z")
Dear SurveyEngine colleagues, I have double-checked the forum and can’t see anyone has asked this question yet so hopefully useful to other people too. Under the Experiment \> Spec tab, I can currently enter my attribut… --- ## [Renaming button "restart selection"](https://forum.surveyengine.com/t/renaming-button-restart-selection/118)
**Author:** [@Gerrit](https://forum.surveyengine.com/u/Gerrit)\ **Replies:** 2\ **Last updated:** [23 March 2023 11:29 UTC](https://forum.surveyengine.com/t/renaming-button-restart-selection/118 "2023-03-23T11:29:18Z")
How is it possible to rename the button “restart selection”? It shows up in the boxed structure of experiments. I would need to rename it in German. --- ## [Increasing the font and color of text](https://forum.surveyengine.com/t/increasing-the-font-and-color-of-text/39)
**Author:** [@Freddo](https://forum.surveyengine.com/u/Freddo)\ **Replies:** 3\ **Last updated:** [16 March 2023 10:39 UTC](https://forum.surveyengine.com/t/increasing-the-font-and-color-of-text/39 "2023-03-16T10:39:16Z")
Can the questions be presented in a larger font and different color than the response options? --- ## [Are there Experiment Design Courses](https://forum.surveyengine.com/t/are-there-experiment-design-courses/109)
**Author:** [@Freddo](https://forum.surveyengine.com/u/Freddo)\ **Replies:** 1\ **Last updated:** [13 February 2023 23:33 UTC](https://forum.surveyengine.com/t/are-there-experiment-design-courses/109 "2023-02-13T23:33:06Z")
I want to learn more about experimental designs - where can I get help? [Previous page](https://forum.surveyengine.com/latest.md?page=2) [Next page](https://forum.surveyengine.com/latest.md?page=4)