Answer:
Hey there! This is an opinion :D
Step-by-step explanation:
The phrase "there seems to be" is implying that the author/speaker is of the opinion that there seems to be too much stabilized testing in public schools.
Basically, a fact is a provable claim that is verifiable. An opinion is a personal belief or judgement that is not provable.
A fact would be, "There is too much stabilized testing in public schools," probably backed up with several articles and/or statistics. But in this case, it isn't a fact, merely a statement of opinion!