Air is the element of freedom. Airbending concentrates on speed and evasion, forgoing a strong offense for a greater defense. Though apparently lacking fatal finishing moves, it is the most dynamic of all the bending arts. Airbenders use their capability to bend unencumbered by the ground or any other environmental factors and use their own momentum as a weapon, evading attacks with astounding agility to tire their opponents out or building up massive inertia for explosive gusts of wind to make their counterattacks finishing moves. Airbenders, when resorting to physical confrontation, are able to harness the immense and intangible power of wind. The sub-skills of airbending are spiritual projection and flight."

As an airbender, you are free-spirited, creative, and ever moving. You are subtle yet dynamic, alone and with multitudes, and everywhere the wind blows. Airbenders practice the Ba Gua Zhang martial art style, something you may wish to pick up should you have the interest.

Does this not feel right?
Remember, you know yourself better than any person or test. This test would likely tell Korra she's a firebender, but she knows her connection to water regardless.
But maybe we're on the right track.
Do you feel closer to water? Perhaps you're a cloud or mistbender, in which case you could learn a mix of Ba Gua and Tai Chi Chuan Yang Style.
Feel closer to earth? Sandbending would be right for you, likely the Primordial Tai Chi form.
Drawn to fire? You may have a talent for combustion such as Sparky Sparky Boom Man and P'Li. Combine your flighty agility from Ba Gua with the explosiveness of Northern Shaolin.
In the end, it's up to you.