Achievement motivation can be defined as the drive to succeed minus plus( minus, plus ) the fear of failure. The level of achievement motivation depends on the interaction of personality and situation confidence( situation, confidence ).
Some performers have NAch approach, some performers have a NAF approach. The personalities can be innate or developed, those with the trait of approaching competition will try harder less hard( harder, less hard ) in most situations.
The performer has to gauge the probability of success in the task and the incentive gained from that success. If a task is easy difficult( easy, difficult ), the probability of success will be high but the incentive value might be low. A person with a NAF NAch( NAF, NAch ) approach might choose an easy task with low incentive value. If a task is more less( more, less ) difficult and has a lower probability of success, it might have a higher incentive value. A person with a NAch NAF( NAch, NAF ) approach might choose a difficult task with high incentive value.

Outcome Task-related( Outcome, Task-related ) goals can be set to base performance on others. If the performer succeeds, pride and satisfaction and maintained increased decreased( maintained, increased, decreased ), if the performer fails, confidence can be lowered.
Task-related Outcome( Task-related, Outcome ) goals can be set to base performance against the performer themself rather than others. This allows success to be achieved regardless of the result, thus maintaining increasing decreasing( maintaining, increasing, decreasing ) confidence.