This study has been debunked previous here on HN:
https://news.ycombinator.com/item?id=8807497
https://news.ycombinator.com/item?id=8797002
Most of the study is, to be honest, bullshit.
https://news.ycombinator.com/item?id=8807497
https://news.ycombinator.com/item?id=8797002
Most of the study is, to be honest, bullshit.
IMHO, those are honest goals for a test. Your target may be your university's (publisher's, peer's) expected format which will cause a drop in your grade (pay, funding) if you miss. I also feel that we are frequently time constrained when trying to get work done, so I don't feel that the criticism against that is legitimate.
Now then, this is certainly not the definitive study to decide which is better, Word or LaTEx, but it's certainly an important study for those who want to be productive and have a particular format for a document that they need to match.