What does raising test pressure do?

http://www.baltimoresun.com/news/maryland/bs-md-cheating-on-tests-20110625,0,6697385.story

“Cheating scandals put tests in the spotlight” There are about a million over and undercurrents wrapped up in this title, but I am going to focus on two simple ones.
1. We do not yet (at least for the vast majority of city schools) have merit pay or teacher evaluations based on the performance of students on these standardized tests. If we think that cheating and tampering is a major problem now, what do we expect to happen when that pressure is applied even more broadly. Those of us who espouse the idea that putting more emphasis on the raw data of test scores will raise the bar for all teachers and schools, should think twice about how account for that added pressure in their analysis of a system’s effectiveness.
2. Riffing off that idea of implementation, I do think that there are some pretty simple ways to do these tests better, especially if we want to raise the amount of pressure. The first thing to do is move toward all-electronic testing. This takes an investment, but it also prevents outright cheating by schools or teachers. The second thing to do that will require slightly more of an effort is to institute a proctoring system where teachers are not in the room or at least with someone else when students are taking the test. Again, if one wants a system with even greater pressure on teachers to have their students perform well on tests to succeed without cheating, these things must be put into place