This article is trash. They can learn nothing by the methods used. There were 40 subjects, not randomly selected, and they had no way to normalize for skill or

This article is trash. They can learn nothing by the methods used. There were 40 subjects, not randomly selected, and they had no way to normalize for skill or motivation. The tasks are mimicry, not scholarly document preparation. The evaluation metric is not really even given. And the biases of the researchers are evident — last line of the paper: “preventing researchers from producing documents in LaTeX would save time and money to maximize the benefit of research and development for both the research team and the public.” There is no way the data they have is sufficient to reach this conclusion. What an embarrassment.