I think quality is dropping. For example, in the USA, it was proported that if you found a physician that was Board Certified, you could be confident that he was competent and up to date with the latest knowledge in his/her field. But as revealed in the news media recently, physicians to be tested are given the questions and answers from previous exams, so they can memorize these before the exam. Then after taking their exams, they would write down as many of the questions they could remember so that these would be passes on to future candidates. So being Board Certified is now a sham. It simply reveals how well you memorized the answers.
Another example, is the LSAT test that is given to students who want to enter a private high school. I was tutoring math to a student who had to take the LSAT test. So I needed to help him prepare for the math portion of the test. The organization provided examples of some of the questions from previous tests, in order to get an idea of the types of questions to be asked. What I discovered was that a relatively small proportion of the questions actually dealt with math. The others dealt with techniques for taking tests. All the answers were multiple choice (4 possible choices for each question). The most important technique for achieving a high score was to: a) review all the choices to see which ones could not possibly be the correct answers – they might be impossibly large or small quantities or they might be expressed in inappropriate units; b) eliminate these obviously wrong answers; c) you were usually left with only one surviving answer – which you selected as your choice. In other words you did not have to know the math; and if you did know the math you did not have to apply it; and, furthermore, if you did apply the math, it might take too much time to finish all the questions in the allotted time. So passing the LSAT is also a sham. It simply reveals how well you learned the techniques for taking an LSAT test.