Loại câu hỏi - Xếp hạng
From LimeSurvey Manual
Mô tả ngắn
Loại câu hỏi này cho phép bạn trình bày cho những người tham gia khảo sát danh sách các câu trả lời/tùy chọn có thể có, sau đó họ có thể xếp hạng theo sở thích của mình.
Ví dụ: Question type ranking.zip.
Tùy chọn chung
Hiển thị
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.
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.
Show javascript alert (showpopups)
Description
Show an alert if answers exceeds the number of max answers. Else just update the expression manager tip (show it in red).
Available options
- On (default option)
- Off
Same choice height (samechoiceheight)
Description
If this option is enabled, then all the answer options defined within this question type will have the same height. For example, the height of the answer options usually defer from each other if they contain images (unless the dimension is the same across all your answer options).
Available options
- On (default value)
- Off
Same list height (samelistheight)
Description
The ranking question type makes use of a choice list (where all the answer options are displayed) and of rank list (where the answer options are ranked). If this option is activated, both lists will have the same height.
Available options
- On (default value)
- Off
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.
Maximum columns for answers (max_col_for_ans)
Description
This option limits the number of columns created in the database (more precisely, in the answers table). If you give a value lower than maximum answers option, then this attribute will represent the upper limit of the maximum choices a respondent can make.
Valid Values
- Any positive numerical value
- The default value is the total number of answer options your question contains. The number will be displayed after you activate for the first time the survey.
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.
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.
Khác
Choice header (choice_header)
Description
Type in the box the new name of the choice list header.
Valid values
- If left empty, the header will be "Your choices" (default value)
- Any characters
Rank header (rank_header)
Description
Type in the text box the new name of the ranking list header.
Valid values
- If left empty, the header will be "Your ranking" (default value)
- Any characters
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