Does Defeatist reduce Attack or other stats too?

Question

Initially it was believed the Faint-Hearted ability from Black/White reduced Attack when HP falls below half. However a few places seem to indicate other stats drop as well.

Does anyone know which stats drop with this ability?

Answer 1

According to Smogon, the central for research on how Pokemon works, it halves all stats by 50%. Other sources say just Attack, some say all stats, at one point, Smogon said just Attack and Speed.

NOTE: I've Just found this. Since the Research Thread on Smogon now reads confirmation on all stats, I'll assume that. Regardless, it's a crappy ability, and this sick-looking bird has no hope in the Metagame.

Answer 2

According to serebii it only halves attack but according to the games spot forums it halves all stats this will be something one of us is going to need to test.