You are incorrect. Are you a high school teacher?
There are national standards for each content area in high school that serve as the framework for state standards, which serve as the framework for district standards. Each level of standards is an elaboration on the next, not a contradiction or omission.
Implementation is irregular between states, but that is to be expected whenever you are dealing with groups of people with different backgrounds.
The federal government did not directly enforce NCLB. Enforcement was delegated to the states and districts. Where I was teaching at the time, it was done well. Colleagues who didn’t stay employed were typically the colleagues who did not get through the curriculum in a way that the students could understand. It was very difficult and in many ways aspirational, not realistic, but policy makers often lack the experience with the populations affected to be able to make practical policy.
Grades vary widely between high schools of all types. I’ve seen fabricated grades and have been directed by at least two principals to fabricate grades to meet a school-wide or district-wide objective, and I was never in a highly competitive school. Cheating is far more common there. I have friends who have taught in those places and that is what they report. I hated that part of my job and left the field over it. It affected my health negatively.
There isn’t an easy fix for any of this, and experienced school superintendents have written extensively on this topic if you’d like to learn more. It just takes a little research.
Of course, cheating happens, although far more rarely, with standardized tests as well. It’s impossible to eliminate it completely for everyone. It’s sad when the cheating happens behind the students’ backs so that they aren’t even aware of it, which is most typical. Ironically, when students initiate the cheating, these same teachers who do it for them behind their backs will often penalize them harshly and stigmatize them.
I was very careful to select a testing location for my DS this year where I knew some of the people who administered the test and I felt confident they would follow the rules. That’s true at the vast majority of the testing centers. It’s only the ‘elite’ ones where you see the type of standardized test cheating I describe, and only of a few of those.