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93 lines
3.0 KiB
JavaScript
93 lines
3.0 KiB
JavaScript
/**
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* jspsych-survey-text
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* a jspsych plugin for free response survey questions
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*
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* Josh de Leeuw
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*
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* documentation: https://github.com/jodeleeuw/jsPsych/wiki/jspsych-survey-text
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*
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*/
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(function($) {
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jsPsych['survey-text'] = (function() {
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var plugin = {};
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plugin.create = function(params) {
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params = jsPsych.pluginAPI.enforceArray(params, ['data']);
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var trials = [];
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for (var i = 0; i < params.questions.length; i++) {
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trials.push({
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questions: params.questions[i]
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});
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}
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return trials;
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};
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plugin.trial = function(display_element, block, trial) {
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// if any trial variables are functions
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// this evaluates the function and replaces
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// it with the output of the function
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trial = jsPsych.pluginAPI.normalizeTrialVariables(trial);
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// add likert scale questions
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for (var i = 0; i < trial.questions.length; i++) {
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// create div
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display_element.append($('<div>', {
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"id": 'jspsych-survey-text-' + i,
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"class": 'jspsych-survey-text-question'
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}));
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// add question text
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$("#jspsych-survey-text-" + i).append('<p class="jspsych-survey-text">' + trial.questions[i] + '</p>');
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// add text box
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$("#jspsych-survey-text-" + i).append('<input type="text" name="#jspsych-survey-text-response-' + i + '"></input>');
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}
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// add submit button
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display_element.append($('<button>', {
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'id': 'jspsych-survey-text-next',
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'class': 'jspsych-survey-text'
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}));
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$("#jspsych-survey-text-next").html('Submit Answers');
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$("#jspsych-survey-text-next").click(function() {
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// measure response time
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var endTime = (new Date()).getTime();
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var response_time = endTime - startTime;
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// create object to hold responses
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var question_data = {};
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$("div.jspsych-survey-text-question").each(function(index) {
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var id = "Q" + index;
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var val = $(this).children('input').val();
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var obje = {};
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obje[id] = val;
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$.extend(question_data, obje);
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});
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// save data
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block.writeData($.extend({}, {
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"rt": response_time
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}, question_data, trial.data));
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display_element.html('');
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// next trial
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if(trial.timing_post_trial > 0){
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setTimeout(function(){ block.next(); }, trial.timing_post_trial);
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} else {
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block.next();
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}
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});
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var startTime = (new Date()).getTime();
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};
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return plugin;
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})();
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})(jQuery);
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