displayTextOnOptionSelect.js

Qualtrics.SurveyEngine.addOnload(function () {
	var that = this;
	this.questionclick = function(event,element) {
		var choices = that.getSelectedChoices(); // returns an array of all selected options
		if (choices.length >= 6) {
			// now reveal the question!
			jQuery('#QID2').show();
		} else {
			// or not
			jQuery('#QID2').hide();
		}
	}

});

Qualtrics.SurveyEngine.addOnReady(function() {
	// on page load, hide the question you want to use to display extra text
	jQuery('#QID2').hide();
});