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59 lines
3.7 KiB
Markdown
59 lines
3.7 KiB
Markdown
# cloze
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This plugin displays a text with certain words removed. Participants are asked to replace the missing items. Responses are recorded when clicking a button. Optionally, responses are evaluated and a function is called in case of differences, making it possible to inform participants about mistakes.
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## Parameters
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In addition to the [parameters available in all plugins](../overview/plugins.md#parameters-available-in-all-plugins), this plugin accepts the following parameters. Parameters with a default value of *undefined* must be specified. Other parameters can be left unspecified if the default value is acceptable.
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| Parameter | Type | Default Value | Description |
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| ------------- | -------- | ------------------ | ---------------------------------------- |
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| text | string | *undefined* | The cloze text to be displayed. Blanks are indicated by %% signs and automatically replaced by input fields. If there is a correct answer you want the system to check against, it must be typed between the two percentage signs (i.e. % correct solution %). |
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| button_text | string | OK | Text of the button participants have to press for finishing the cloze test. |
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| check_answers | boolean | false | Boolean value indicating if the answers given by participants should be compared against a correct solution given in the text (between % signs) after the button was clicked. If ```true```, answers are checked and in case of differences, the ```mistake_fn``` is called. In this case, the trial does not automatically finish. If ```false```, no checks are performed and the trial automatically ends when clicking the button. |
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| mistake_fn | function | ```function(){}``` | Function called if ```check_answers``` is set to ```true``` and there is a difference between the participants answers and the correct solution provided in the text. |
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## Data Generated
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In addition to the [default data collected by all plugins](../overview/plugins.md#data-collected-by-all-plugins), this plugin collects the following data for each trial.
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| Name | Type | Value |
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| -------- | ---------------- | --------------------------- |
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| response | array of strings | Answers the partcipant gave |
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## Examples
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???+ example "Simple cloze using default settings (no check against correct solution, no custom button text)"
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=== "Code"
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```javascript
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var cloze_trial = {
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type: jsPsychCloze,
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text: 'The %% is the largest terrestrial mammal. It lives in both %% and %%.'
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};
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```
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=== "Demo"
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<div style="text-align:center;">
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<iframe src="../plugins/demos/jspsych-cloze-demo1.html" width="90%;" height="500px;" frameBorder="0"></iframe>
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</div>
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<a target="_blank" rel="noopener noreferrer" href="../plugins/demos/jspsych-cloze-demo1.html">Open demo in new tab</a>
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???+ example "More elaborate example (with check against correct solution, custom error handling and modified button text)"
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=== "Code"
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```javascript
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var cloze_trial = {
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type: jsPsychCloze,
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text: 'A rectangle has % 4 % corners and a triangle has % 3 %.',
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check_answers: true,
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button_text: 'Next',
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mistake_fn: function(){alert("Wrong answer. Please check again.")}
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};
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```
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=== "Demo"
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<div style="text-align:center;">
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<iframe src="../plugins/demos/jspsych-cloze-demo2.html" width="90%;" height="500px;" frameBorder="0"></iframe>
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</div>
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<a target="_blank" rel="noopener noreferrer" href="../plugins/demos/jspsych-cloze-demo2.html">Open demo in new tab</a>
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