>>Some of the questions on their so-called test give only partial information and are, therefore, subjective.
Such as?
Evolution.
Such as?
If I may answer, the question regarding dinosaurs is subjective. Since the question does not clarify itself, one must answer based on their subjective impression on what "dinosaur" means. If one understands "dinosaur" to mean "the superorder of bird-hipped, possibly warm-blooded reptiles that went extinct around the K-T boundary," then of course man and dinosaurs did not live at the same time. But if one understands "dinosaur" to mean "the clade containing the common ancestor of sauropods and theropods, and all their descendants," then of course man and dinosaurs coexist.
I don't know whether the wording in the questions was the same as the wording in the articles, but it's unclear whether the word "earliest" in "earliest humans and dinosaurs" applies to both humans and dinosaurs or just humans. The earliest humans did coexist with members of the dinosaur clade, but they did not coexist with the earliest members of the dinosaur clade.
Since the poll was conducted by a polling organization, and not hard scientists or students, I doubt any of the subjects polled could have gotten clarification on these issues before answering.