Aria-Labelledby Vs. Aria-Describedby For Programmatic Link Purpose Association

aria-labelledby

Screen Reader Speech Output
Browser & OS VoiceOver NVDA 2012.3.1 JAWS 14
Safari OS X 10.8.3 internal link Price Sort By: N/A N/A
Mobile Safari iOS 6.1 Price link N/A N/A
Firefox 19.0.2 Win 7 N/A Price link Sort By: link
Internet Explorer 8 Win 7 N/A Price Sort By: link Sort By: link

 

aria-labelledby concatenating ID's of link descriptor and ambiguous link text

aria-describedby

aria-labelledby with a group role on the container