In reference to my earlier post, I'm looking for credible, accredited or widely accepted foreign language proficiency exams.
Duolingo claims they use WebCAPE proficiency test as a key metric of how well Duolingo's platform/curriculum prepares their users in the language:
we've looked at how well people learning with Duolingo score on the WebCAPE test
Is this the de facto standard for gauging a learner's proficiency? What are other options? If there's nothing good in the US, what are international standards that will be a good, widely accepted measure of a learner's proficiency?
I'm attempting to be as objective as possible when I teach a foreign language and want to ensure my curriculum is held to accepted standards.