Re: Qualified vs Certified
In my volunteer line of work I recertify as a medic every three years. This means I take both a written and a practical test. Certainly some of the questions are controversial, or just plain bad questions, but quite often individuals will score low on the exams, or even fail them, simply because they are bad test takers.
What I have observed over the years applies to every profession that requires an exam of any sort. Just because someone does well on a certifying exam, it does not mean they are good at the actual job in question. Likewise, just because someone scores low on an exam, it does not mean their skills are just marginal.
Hopefully, in all lines of work, exams are just one part of the certification process.