Loại câu hỏi - Nhiều lựa chọn

Mô tả ngắn

Loại câu hỏi này có thể thu thập đầu vào của nhiều lựa chọn thông qua các hộp kiểm.

Tập tin:M_multiple_options.png

Ví dụ: Ví dụ về loại câu hỏi trắc nghiệm.

Hiển thị

Random answer order (random_order)

Description

  As of 5.5.0, this attribute is not longer used for ordering answer options. Please see QS:Answer_order

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)

Label for 'Other:' option (other_replace_text)

Description

Short text string to replace the text "Other" as label for the "other" option.

Note: You can make use of this attribute if you have previously enabled the "other" option located under the general options tab.

Example

Entering a value of "Alternative:" for this attribute would result in the word "Alternative:" being used instead of "Other".

  It is extremely important to note that this question attribute should only be used in single-language surveys. A translation will be attempted but will only be successful if the translation already exists in the alternate language file (i.e.: translation cannot be made on a survey-by-survey basis). Therefore, to translate your other text, you have to add your other_replace_text to the english .mo file (because this is LimeSurveys baselanguage) and translate this String in each of your surveys languages .mo files.

Position for 'Other:' option (other_position)

Description

Indicates where the 'Other' option should be placed in the answer list, in relation to the answer options.

Note: You can make use of this attribute if you have previously enabled the "other" option located under the general options tab.

Options

• Before No Answer: The 'Other' option shall be placed in the answer list before the 'No Answer' answer option.
• At End: The 'Other' option shall be place at the end of the answer list.
• After specific answer option: The 'Other' option shall be placed in the answer list after a specific answer options which shall be set in the attribute Answer code for 'After specific answer option'.

Display columns (display_columns)

Description

This setting allows you to display the answer options in more than one column. Add this attribute and a value indicating the number of columns you wish the question to use. It is recommended to limit the number of columns to the number of answers.

Valid values

• Any positive integer value greater than 0

Examples

• If you have 3 answers options and you want to show these horizontally, set this option to "3" instead of vertically.
• If you have 6 answers options and you want to show these in two columns (3 per column), then set this option to '2'.

CSS class (css_class)

Description

If you want to add special CSS classes to certain questions, you can enter the CSS class name(s) in this box. Make sure you leave an empty space between different class names.

Valid values

• Any text string with a space between different CSS class names.

 Hint: You can also insert an expression in this box ^{(New in 3.0.0 )}. Remember that the output of the expression will not be updated dynamically.

  According to the W3C, CSS class names can contain only the characters [a-zA-Z, and 0-9] and ISO 10646 characters U+00A1 and higher, plus the hyphen (-) and the underscore (_). They cannot start with a digit, or a hyphen followed by a digit. LimeSurvey encodes CSS classes, but it does not fix it totally.

Relevance help for printable survey (printable_survey_relevance_help)

Description

If you wish to print a survey, you can also print the relevance equations for each question. But, if you wish to offer instead an explanation rather than the expression on the printed form, fill in this box with the text explanation for the relevance equation.

Valid values

• Any text and/or numbers you wish to be displayed on the printable form.

Lý luận

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.

Please note that if you use this attribute with Ranking questions, you have to set the question to non-mandatory. Otherwise, all the items need to be ranked which is counter-intuitive if you decide to use the min_answers function too.

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.

QS:Mảng filter exclude

Numbers only for 'Other' (other_numbers_only)

Description

If this attribute is enabled together with the "option other" one (located under the General options tab), only numbers can be typed in by the survey respondents in the "other" textbox.

Available options:

• On
• Off (default)

Assessment value (assessment_value)

Description

If assessments are used and one or more subquestions are checked, the value from this field will be added to each checked subquestion, contributing to the final assessment score.

Check the following link to read more on assessments and their usage in LimeSurvey.

Valid values

• Any numerical values

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".

To learn how to filter subquestions, please read the following wiki section.

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:

Randomization group name (random_group)

Description

It places the questions into a specified randomization group, all questions included in the specified group being displayed in a random order to the survey respondents.

You can find a sample survey using randomization group name in ExpressionScript sample survey.

Valid values

Just enter any string you like (for example: 'group1'). All question which have set the same string within the randomization group name box will have their place in the survey randomized (=randomly exchanged among each other).

Preview To preview the questions use the preview survey instead of the preview question group function, as the second has been reported to not show the questions in a randomized order.

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.

 Hint: In order to create complex validation messages, read about the usage of the ExpressionScript.

If you wish to import the example from above into your LimeSurvey installation, download the following .lsq file: Em_validation_q_example.zip.

 Hint: Remember, LimeSuvey uses the Perl syntax for regular expressions, so they should start and end with / (slash character)!

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.

Khác

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

Thống kê

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.

Note: To have the statistics displayed on the last page, do not forget to enable this functionality from the presentation & navigation settings. Otherwise, no statistics link will be displayed at the end of your 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)

Display chart (display_chart)

Description

This attribute allows the survey administrator to choose if a chart that contains the question results should be displayed to the survey participants after they filled out the survey.

Note: To have the chart displayed on the last page, you have to enable the following options:

• public statistics survey setting from the presentation & navigation settings
• show graphs survey setting from the presentation & navigation settings
• public statistics question attribute, and
• display chart question attribute.

Available options

• On
• Off (default)

Chart type (chart_type)

Description

This attribute allows the survey administrator to choose which type of chart will be displayed to the respondent once he/she finished filling out the survey.

Note: Do not forget to change the question and survey settings in order to have the charts displayed at the end on the survey. For more details, check the wiki section on the display chart question attribute.

Available options

• Bar chart
• Pie chart
• Radar
• Line
• PolarArea
• Doughnut

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