[_a_a_a_]

Err, what exactly were you expecting, their telephone numbers? You got figures and probabilities in the conclusion and I can't see what else you could reasonably hope for.

[yreg]

I (and I believe jwocky as well) expected some kind of rationale. There are no figures nor probabilities supporting the conclusion in the linked article.

Of course if one pirates the paper they can learn more.

[_a_a_a_]

Ah, the 'method' part. Gotcha.

You might email the author and ask for a copy. They're often surprisingly willing to hand out individual copies.