What does Determination really do?

[Burmecia]

"The will to keep living... The resolve to change fate. Let's call this power... Determination."
...
I see myself out

[AnotherPerson]

It makes you feel more determined.
That means you'll heal more and you'll do more damage. It's like saying "I'll try harder".
From what I understand, DHR isn't always guaranteed, and neither is Crit. However they both scale better than determination because determination is a constant effect.

[AduroT]

Since it was mentioned Determination is still better than Tenacity, what kind of numbers does Tenacity generate?

[Esmoire]

Since it was mentioned Determination is still better than Tenacity, what kind of numbers does Tenacity generate?

At 80, every 33 tenacity equates to the tank taking -0.1% less damage, as well as increases the damage the tank does by +0.1%, and the healing they produce by +0.1%.

This site is a good place for specific intervals: http://allaganstudies.akhmorning.com/

[NessaWyvern]

They should probably just state the multipliers the stats do in the character menu. Otherwise, you'd have to rely on parsers to figure that out, and risk the "PaRsErS aRe ToXiC" crowd coming after you.

[Barraind]

They should probably just state the multipliers the stats do in the character menu. Otherwise, you'd have to rely on parsers to figure that out, and risk the "PaRsErS aRe ToXiC" crowd coming after you.

To be nitpicky, data mining. I dont disagree though.

Theres no attainable values of any secondary stat that would allow you to accurately parse the stat to each breakpoint, especially since it uses breakpoints and not a linear or exponential scale. Every single breakpoint is within a fraction of an allowable deviation of both the previous and the following breakpoints.