Such tests by their very nature cannot possibly be "racist" as all students at the school had the same curriculum. There are not black classes and latino classes and white classes who all give out different educations. All students must show that they retained some of the knowledge after sitting in class for 3 years...so if one group doesn't remember anything or doesn't understand the tests, they want to scream "racist"? Oh yeah sure.
This is all nonsense.
We give standardized tests to see what the children have learned.
To imply that racism is involved is amazingly stupid. If your child doesn't do well, your child hasn't learned the objectives... pure and simple.
These people who are screaming racism are simply idiots of their own choosing.
I sincerely doubt they would do well on these tests.