Question type - Array (Numbers)/de: Difference between revisions
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Revision as of 17:54, 26 May 2013
Kurzbeschreibung
This type allows a large array of numbered dropdown boxes with a set of subquestions as the "y-axis", and another set of subquestions as the "x-axis".
You can set a special question attribute to use this question type with checkboxes.
Allgemeine Beschreibung
The Array (Numbers) question type allows a large array of numbered dropdown boxes with a set of subquestions as the “y-axis”, and another set of subquestions as the “x-axis”. It provides for a very large display of question and answers. By default the dropdown box contains the numbers from 1 to 10, however this can be changed by adjusting the advanced question settings.
The behavior is like this:
- If you only specify a minimum value the range will adjust as min value + 10
- If you only specify a maximum value, the range will be 1 and maximum value.
- When both minimum and maximum value are present and if the minimum value is greater than the maximum value, no dropdown box will be displayed otherwise it works as usual.
Englische Beispielfrage herunterladen: DP_-_Array_Multi_Flexi_Numbers.csv
You can set a special question attribute to use this question type with checkboxes:
Englische Beispielfrage herunterladen: DP_-_Array_Multi_Flexi_Numbers_Checkbox.csv
Basis-Einstellungen
Pflichtangabe
Beschreibung:
Mit dieser Option wird festgelegt, ob eine bestimmte Frage von Umfrageteilnehmern zum Fortfahren beantwortet werden muss. Müssen nur bestimmte Unterfragen beantwortet werden, verwenden Sie das Attribut minimale Antwort in der Registerkarte Logik (nur bei Matrix- oder Mehrfachauswahlfragen).
Verfügbare Optionen:
- An – Die Frage muss beantwortet werden, bevor der Teilnehmer zur nächsten Seite gehen kann – die Antwortoption „Keine Antwort“ wird nie angezeigt.
- Weich – Wenn die Frage nicht beantwortet wird, wird eine Warnung angezeigt, wenn versucht wird, zur nächsten Seite zu gelangen – der Teilnehmer kann die Warnung jedoch ignorieren und fortfahren. Beachten Sie, dass die Option „Keine Antwort“ weiterhin angezeigt wird (falls in den Einstellungen der Umfragepräsentation aktiviert)
- Aus (Standard) – Frage kann unbeantwortet bleiben
Validierung (mit regulären Ausdrücken) (preg_validation)
Beschreibung
Mit dieser Option können Sie einen regulären Ausdruck angeben, mit dem Sie alle Teile einer Frage validieren können.
Wenn eine Frage oder ein Unterfragewert die Validierungsanforderungen nicht erfüllt, wird die Hintergrundfarbe des Texteingabefelds in Rot geändert, damit Benutzer leicht erkennen können, welche Teile der Frage korrigiert werden müssen. Somit können Sie eine On-Page-Validierung durchführen. Auf diese Weise müssen Sie nicht darauf warten, dass der Benutzer auf die Schaltfläche „Senden“ klickt, um die entsprechende Frage zu bestätigen.
Gültige Werte
- Jeder gültige reguläre Ausdruck
Beispiel
- Klicken Sie hier, um mehrere Beispiele zu überprüfen.
Bedingung (früher „Relevanzgleichung“)
Beschreibung:
Ist der Ergebniswert der Bedingung „1“ oder „wahr“, ist die Frage im Umfragekontext „relevant“, wird also dem Umfrageteilnehmer angezeigt. Wenn nicht, wird die Frage ausgeblendet. Für jede Umfragefrage können Sie eine Relevanzgleichung angeben. Diese Funktion ist der Nachfolger von conditions und unterstützt eine wesentlich komplexere bedingte Logik.
Syntax-Hervorhebung:
Wenn Sie die Bedingung speichern, wird sie ausgewertet und syntaktisch hervorgehoben. Eventuelle Fehler werden farblich gekennzeichnet, sodass Sie sie schnell erkennen und beheben können.
Gültige Werte:
- Jede Bedingung, die die Syntax ExpressionScript ohne umgebende geschweifte Klammern verwendet.
Beispiel
Hier finden Sie Beispiele für die Syntax-Hervorhebung (derzeit nur auf Englisch).
Erweiterte Einstellungen
Antwortbreite (answer_width)
Beschreibung
Dieser Wert legt die Breite der Antwortspalte mithilfe eines Prozentsystems fest. Wenn Sie in dieses Feld beispielsweise 40 eingeben, werden 40 Prozent der Breite der Frage für Antworten verwendet. Die verbleibende Breite wird gleichmäßig auf die Unterfragen aufgeteilt.
'Gültige Werte
- Jeder ganzzahlige Wert von 1 bis 100.
Maximalwert (multiflexible_max)
Beschreibung
Multiflexible_max ist nur im Fragetyp Array (Zahlen) verfügbar.
Dies legt den maximalen numerischen Wert für die Dropdown-Listen fest.
'Gültige Werte
- Beliebiger ganzzahliger Wert
- Beliebige Zahl
- Beliebiger SGQA-Code
- Beliebiger Fragecode (Variablenname)
- Jede Gleichung, die die Syntax Expression Manager ohne die umgebenden geschweiften Klammern verwendet.
Beispiel
Um ein Dropdown-Feld von 1 bis 10 festzulegen, geben Sie in dieses Feld „10“ ein.
Minnimalwert (multiflexible_min)
Beschreibung
Diese Option ist nur im Fragetyp Matrix(Zahlen) verfügbar.
Dies legt den minimalen numerischen Wert für die Dropdown-Listen fest.
Gültige Werte
* Beliebiger ganzzahliger Wert
- Beliebige Zahl
- Beliebiger SGQA-Code
- Beliebiger Fragecode (Variablenname)
- Beliebige Gleichung unter Verwendung der Expression Manager Syntax ohne die umgebenden geschweiften Klammern.
Beispiel
Um ein Dropdown-Feld ab 7 festzulegen, setzen Sie dieses Attribut auf 7.
Schrittwert (multiflexible_step)
Beschreibung
Nur verfügbar im Fragetyp „Array (Zahlen)“. Legt den numerischen Schrittwert für die Dropdown-Listen fest.
Beispiel
So legen Sie ein Dropdown-Feld fest, das bei der Zahl 2 beginnt und in 2er-Schritten bis 10 geht (z. B. 2, 4, 6, 8, 10); Setzen Sie dieses Attribut auf 2.
Checkbox-Layout (multiflexible_checkbox)
Beschreibung
Das Kontrollkästchen-Layout ist nur innerhalb des Fragetyps Array (Zahlen) verfügbar. Wenn diese Option aktiviert ist, kann der Umfrageteilnehmer die Unterfragen beantworten, indem er über Kontrollkästchen die richtige Antwort ankreuzt.
Dieses Attribut verwendet automatisch multiflexible_min=0, multiflexible_max=1 und multiflexible_step=1, unabhängig von den benutzerdefinierten Werten, die in die entsprechenden Felder eingegeben wurden.
'Verfügbare Optionen
- Ein
- Aus (Standard)
Beispiel
Wenn diese Option aktiviert ist, sieht der Fragetyp „Array (Zahlen)“ folgendermaßen aus:
Insert page break in printable view (page_break)
Description
This attribute is only active when you actually print a survey from the Printable View. It forces a page break before the question.
Available options
- On
- Off (default)
Show in public statistics (public_statistics)
Description
This attribute allows the survey administrator to chose if a particular question results should be displayed to the survey participants after they submitted the survey.
The default setting for each question is 'Off' (=Do not show the question statistics to the respondents). You have to enable this for every single question if you want to show the survey statistics of that (those) particular question(s) to the survey participants after the survey submission.
Available options
- On
- Off (default)
Random answer order (random_order)
Description
This attribute causes LimeSurvey to ignore the existing order of answer options/subquestions, and instead it orders them randomly. This option permits the survey creator to diminish the survey bias. Please note that if a question has subquestions, the order of subquestions will be randomized, not the order of the answer options.
Available options
- Yes - Randomize when participant enters survey
- No (default)
SPSS export scale type (scale_export)
Description
This is used for SPSS export only. This attribute overrides the default scale guessed by SPSS. To learn what the different measurement scales do, please read the related SPSS documentation.
Available options
- Default (default)
- Nominal
- Ordinal
- Scale
Array filter (array_filter)
Description
The Array filter setting allows you to use any multiple choice question to select or set which responses are displayed in a subsequent list, array or multiple choice question.
- Multiple choice
- Multiple choice with comments
- Multiple short text
- Multiple numeric
- Array (5 point, 10 point, Yes/No/Unknown, Increase/Same/Decrease, Column)
- Array (Dual Scale, Text, Numbers)
- Ranking
Furthermore, each of these question types can be filtered.
The only exception is Array (Column), which can filter other questions, but not itself.How to set a filter
To set a filter, enter the question code of a multiple options question in the array filter box of the question you are currently editing. The respective question will be used as the source of information for the current question, the selected answers from the previous question being retrieved and used as answer options for the current question. For example, if your source multiple option question code is "Q1", enter "Q1" into the 'Array Filter' box to start the filtering process of the answers. Only the answer options that are selected in question Q1 will be visible in the array_filter-ed question.
Cascading
The selected options can be displayed in cascade. This means that you can select a question which filters another question, which filters another question, and so on.
Array filter example
Let's take a look at the following example to better understand the power of this setting:
In the screenshot from above, we got two questions. The first one is a multiple short text question type, while the second one is an array dual scale question type. The answers you provide in the first question will be listed in the second one. Technically, the answers you provide to the subquestions from the first question are filtered and displayed in the second question.
This example can be downloaded from the following link: limesurvey_group_32.lsg. Import this question group into your LimeSurvey installation.
Array exclusion filter (array_filter_exclude)
Description
The Array filter exclusion setting allows you to use any multiple choice question to select or set which responses are NOT displayed in a subsequent list, array or multiple choice question.
- Multiple choice
- Multiple choice with comments
- Multiple short text
- Multiple numeric
- Array (5 point, 10 point, Yes/No/Unknown, Increase/Same/Decrease, By column)
- Array (Dual Scale, Text, Numbers)
- Ranking
Furthermore, each of these types of questions can filtered.
The only exception is Array by column which can filter other questions, but it cannot be filtered.How to set it up
Enter the question code of a multiple options question in the array exclusion filter box of the question you are currently editing. The respective question will be used as the source of information for the current question, the non-selected answers from the previous question being retrieved and used as answer options for the current question. For example, if your source multiple option question code is "Q1", enter "Q1" into the 'Array exclusion filter' box to start the filtering process of the answers. Only the answer options that are NOT selected in question Q1 will be visible in your question.
Cascading
The selected options can be displayed in cascade. This means that you can select a question which filters another question, which filters another question, and so on.
Example
Let's see together the below example:
In the screenshot from above, we got two questions. The first one is a multiple choice question type, while the second one is a multiple choice with comments question type. The answers you provide in the first question will be excluded from the second one. For example, if you select the ComfortUpdate option (that has the subquestion code 'SQ1') and the Plugin option ('SQ4'), the 'SQ1' and the 'SQ4' subquestion correspondents from the second question will be excluded. In our screenshot, we can observe that only the unselected options in the first question and displayed in the second one.
This example can be downloaded from the following link: Limesurvey_group_array_filter_exclude.zip. Import this question group into your LimeSurvey installation.
Array filter style (array_filter_style)
Description
This function allows you to choose how the array filtered subquestions are displayed. They can either be "hidden" or "disabled".
Available options
- Hidden (default) - if this option is selected, then the previously selected subquestions will not be displayed in the second question.
- Disabled - if this option is selected, then the previously selected subquestions will be greyed out and become unselectable.
Example
If you wish to use the "disabled" option, then the previously selected subquestions will be displayed like this:
Minimum answers (min_answers)
Description
This function can be used to ensure that a user selects at least a certain number of answers in a multiple choice question.
Valid values
- Any integer value above 0
- Any number
- Any SGQA code
- Any question code (variable name)
- Any equation, using ExpressionScript syntax, without surrounding curly braces.
Example
If set to X (a random number), the users can submit the survey form if they select at least X checkboxes. If this option is utilised for ranking questions, this ensures that at least three items are ranked before allowing the respondent to submit the answers/survey.
Maximum answers (max_answers)
Description
It can be used to limit the total number of answers a user can select in a multiple choice question.
Valid values
- Any number value
- Any SGQA code
- Any question code (variable name)
- Any equation, using ExpressionScript syntax, without surrounding curly braces.
Example
If set to 2, the user will only be able to check at most two checkboxes or one checkbox + fill the "Other" field (if any). For the Ranking question type, the participant would be able to select maximum two items.
Question validation equation (em_validation_q)
Description
This is an equation that is used to validate the entire question (e.g, all of its parts collectively for a multi-answer question). If the question fails the validation criteria, then em_validation_q_tip message will be displayed (it uses the CSS style .error). This tip uses the .em_q_fn_validation CSS style, which is hidden by default within template.css.
The main difference between this feature and the subquestion validation equations (em_validation_sq option) is that for this feature, if the question (or question parts) fail validation, then an error message could be shown. For the subquestion validation, each text entry cell (e.g., in an array question type, but it can also be applied to single entry question types) will be styled so that the background color is (light) red.
Valid values
- Any equation that makes use of the ExpressionScript syntax, without surrounding curly braces.
Example
- You want to collect demographic information from users via a multiple short text question, and you want to validate that the user has entered a valid email address and phone number.
This example shows how the question looks with invalid answers:
And here is what it looks like with one invalid answer:
Here is how you edit a question to enter that information:
And here is part of the Show Logic File output that lets you check the accuracy of your expression and ensure that there are no syntax errors:
As you can see, the validation equation tests that both the email and phone number are either empty or match a regular expression filter.
The validation tip only shows the warning message if the phone or email appears invalid.
If you wish to import the example from above into your LimeSurvey installation, download the following .lsq file: Em_validation_q_example.zip.
Tip for whole question validation equation (em_validation_q_tip)
Description
If you are using the question validation equation, you can use this box in order to display an optional message as question tip on how the question has to be filled out.
Valid values
- Any string or equation that makes use of the ExpressionScript syntax.
Example
See the example from the question validation equation wiki section- it shows how the tip can be tailored to show which parts of a multiple short text question fail the validation criteria.
Sub-question validation equation (em_validation_sq)
Description
This is an equation that is used to validate each subquestion (text field) individually. Any text field that does not pass these validation conditions will have its background color turned pink (using the .em_sq_fn_validation CSS style) to highlight the error. Note that this is available in addition to the regular expression-based validation option.
Valid values
Any equation that makes use of the ExpressionScript syntax, without surrounding curly braces.
Examples
For example, if you want to allow only numbers that are a multiple of 3 as answers, the equation would be:
(this / 3) == floor(this/3)
The reserved variable this is automatically replaced by a reference to the active text entry cell.
Tip for sub-question validation equation (em_validation_sq_tip)
Description
If you are using em_validation_sq, this is an optional message/tip that will be displayed if the introduced answer is incorrect.
Valid values
- Any string
Example
- Continuing the example of validating emails, the tip might be "Please enter valid email addresses."