Question

Those who attribute their poor performance to a lack of ability or to situations beyond their control

Answer 1

They are demonstrating a perspective called pessimism.

Pessimism is a tendency to see the worse in all situations – they generally don’t have much hope for the future.

The opposite of this tendency is optimism – someone who sees the best in all situations; filled with confidence about the future. Someone who is somewhere in the middle would best be called as a realist.

Answer 2

Those who attribute their poor performance to a lack of ability or to situations beyond their control "demonstrate pessimism".

Nowadays everyone is by all accounts discussing confidence and constructive reasoning yet for a few people who are pessimistic such an exhortation sounds strange.  

Actually we can't accuse a pessimistic individual for not tolerating such exhortation about positive thinking in light of the fact that a guidance can just work when it coordinates the individual's conviction framework.  

Pessimism can surely aggravate your life, increment your awful temperaments and even outcome in depression. In my book, a definitive manual for getting over depression we clarified how sadness can be simply a condition of loss of expectation a man comes to in the wake of getting to be skeptical.