This would make Karl Popper cry. And, at the very end:
The present results indicate that under certain, theoretically predictable circumstances, female ovulation—long assumed to be hidden—is in fact associated with a distinct, objectively observable behavioral display.
This statement is correct—if you interpret the word “predictable” to mean “predictable after looking at your data.”
P.S. I’d like to say that April 15 is a good day for this posting because your tax dollars went toward supporting this research. But actually it was supported by the Social Sciences Research Council of Canada, and I assume they do their taxes on their own schedule.
P.P.S. In preemptive response to people who think I’m being mean by picking on these researchers, let me just say: Nobody forced them to publish these articles. If you put your ideas out there, you have to be ready for criticism.