These tests seem full of flaws or I am missing a lot of stuff here. Plus the wording is terrible, does "150 participants who were given a text of 1,000 words to read" mean they were given 2 texts, one scifi, and the other ordinary drama or just 1 text. I am curious as to know who these 150 readers were? Were these people taking classical fictional literature classes or people taking anything but classical fictional literature? Or picked by random? Would anybody be surprised if 150 people who avidly read science fiction were to read the narrative realism piece of text and overwhelmingly find it boring?
This seems harmless enough until the search engines pick it up. "Readers of the science fiction story" got shortened to "science fiction readers" and while I don't know who made the switch, they don't mean the same thing to me. It is true only in the context of that one article and I think you might have to read it twice to realize that science fictions does not refer to anyone reading science fiction. In the search engine results it will show up as the full sentence: "Science fiction readers scored lower in comprehension, generally, and in the subcategories of theory of mind, world, and plot.”
This could be nit picking but is it really science fiction when all you do is replace a few simple words to change the setting? First it was written from a feet on the ground point of view, then supposedly switched to one of hurtling through space. Is that just hack writing? Does a crude attempt to change the wording get noticed by the readers? When a writer is practicing formula writing because they know the formula to be successful don't they change a lot more than just a few words for each type of story to make the writing successful?
The guy running the survey wants to run more surveys on more genres because he wonders if subjects that readers are reading can have an impact on their attention span and comprehension of what they are reading. It has been my understanding that when people are biased about something they are less likely to want to know everything about the subject and more likely to form opinions based on partial or even wholly fictional understandings of whatever they are biased against. A better study would be how does a person's bias for one subject interfere with a person's ability to carry out competent work in that subject, or better yet, in unrelated subjects.