Does this article qualify as an original empirical research article?

Link

My instructor is an idiot when it comes to explaining papers.
These are the guidelines:
Only Empirical Research Articles.
Only in Scholarly Journals.

And I have no idea how to use PubMed but that’s what she wants us to use. I would have asked her sooner but the site was lagging a few days ago and I got the cyber clap yesterday…It’s due tomorrow. Please help.
If this doesn’t qualify, please give me an example and explain how you got there. (In PubMed, if possible.)