Usually I use $(\"#id\").val() to return the value of the selected option, but this time it doesn\'t work. The selected tag has the id aioConceptName
$(\"#id\").val()
aioConceptName
Have you considered using plain old javascript?
var box = document.getElementById('aioConceptName'); conceptName = box.options[box.selectedIndex].text;
See also Getting an option text/value with JavaScript