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en:survey:hot-change [11.12.2014 21:35] – alexander.ritter | en:survey:hot-change [15.01.2015 20:19] – alexander.ritter |
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====== Changes During Data Collection ====== | ====== Changes the Questionnaire During the Survey ====== |
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In an ideal world, a questionnaire is created, tested and then the survey can begin. Nevertheless, subsequent changes to the questionnaire cannot always be avoided completely -- whether it be correcting a spelling mistake, or an important answer or answer option is missing. | In an ideal world, a questionnaire is created, tested and then the survey can begin. Nevertheless, subsequent changes to the questionnaire cannot always be avoided completely -- whether it be correcting a spelling mistake, or an important answer or answer option is missing. |
Normally, changing the text (in particular, correcting spelling mistakes) is not a problem. It does not matter whether changes are made to the question title, item text or text elements: there is no change to the variable structure as a result. | Normally, changing the text (in particular, correcting spelling mistakes) is not a problem. It does not matter whether changes are made to the question title, item text or text elements: there is no change to the variable structure as a result. |
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Usually, there is no break in the interview. After saving the change, the participant sees the amended version. | Usually, the survey is not interrupted. After saving the change, the participant sees the amended version. |
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**Warning:** __Do not__ change the text by entering new questions/items and deleting the old version. The data collected with the question up to now will no longer be available (see below). If you do not want to show an existing item in the questionnaire anymore, you can put a tilde (''~'') in front of the respective item. | **Warning:** __Do not__ change the text by entering new questions/items and deleting the old version. The data collected with the question up to now will no longer be available (see below). If you do not want to show an existing item in the questionnaire anymore, you can put a tilde (''~'') in front of the respective item. |
**Problem 1:** When changing the questionnaire itself -- changing the order of questions or pages, inserting or removing questions, changing the presentation of the question ({{:button.settings.png?nolink|settings}}) -- all changes are saved immediately. This is also true when changes are made to PHP code elements: these are saved while typing, and in some cases do not work until changes are finished. | **Problem 1:** When changing the questionnaire itself -- changing the order of questions or pages, inserting or removing questions, changing the presentation of the question ({{:button.settings.png?nolink|settings}}) -- all changes are saved immediately. This is also true when changes are made to PHP code elements: these are saved while typing, and in some cases do not work until changes are finished. |
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**Problem 2:** If you insert new pages or shuffle pages around, then the allocation of the page number to the recorded dwell time (TIME001 etc., [[:en:results:variables#antwortzeiten|Response Times]]) is no longer correct. If a page is given the number 2 initially, and (because another page was inserted before it), is then number 3 after the change, the dwell time is saved in TIME003. However, the old dwell time still remains in TIME002. | **Problem 2:** If you insert new pages or shuffle pages around, then the allocation of the page number to the recorded dwell time (TIME001 etc., [[:en:results:variables#dwell_times|Response Times]]) is no longer correct. If a page is given the number 2 initially, and (because another page was inserted before it), is then number 3 after the change, the dwell time is saved in TIME003. However, the old dwell time still remains in TIME002. |
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If there are more significant changes to be made in the questionnaire (especially to the PHP code), making a copy of the questionnaire beforehand is recommended (**Compose Questionnaire** -> tab //Further questionnaires// -> duplicate button {{:button.copy.gif?nolink|Duplicate Questionnaire}}). Afterwards, ensure that the questionnaire used up to this point is set as default in //Default Questionnaire / Random selection for questionnaires//. | If there are more significant changes to be made in the questionnaire (especially to the PHP code), making a copy of the questionnaire beforehand is recommended (**Compose Questionnaire** -> tab //Further questionnaires// -> duplicate button {{:button.copy.gif?nolink|Duplicate Questionnaire}}). Afterwards, ensure that the questionnaire used up to this point is set as default in //Default Questionnaire / Random selection for questionnaires//. |