The phrase "a stable trait" is correct and usable in written English.
It can be used to describe a characteristic or quality that is consistent and enduring over time.
Example: "Her kindness is a stable trait that everyone admires."
Alternatives: "a consistent characteristic" or "an enduring quality".
Traditionally, impulsivity has been regarded as a stable trait.
Most models in economics and finance assume that risk preferences are a stable trait, much like your height.
We often think that a good or bad leader is good or bad day after day – a stable trait.
Most psychologists assumed that aggression was a stable trait, but Mischel found that children's responses depended on the details of the interaction.
"We knew it was a stable trait: the same person would respond the same way to being sleep deprived on two separate occasions," he said.
Contrary to common belief, integrity isn't a stable trait: Someone who has been fair and honest in the past won't necessarily be fair and honest in the future.
While Dr. Kagan's studies and their progeny do seem to show that anxiety can be a stable trait from early life, they do not shed light on its etiology.
Significant rank correlations of DEX sensitivity of T-cell mitogen-induced responses between the three assessments during the year suggest a stable trait of immune function.
Taken together, these data support the identification of a stable, trait-like impulsive action phenotype in an outbred rat population.
For example, if we think of happiness as a stable trait--if we believe that unhappy people cannot become happier -- then we might be more apt to blame victims for their own unhappiness -- and be less empathetic.
It is likely, that loneliness has a stable trait-like component, independent of environmental situations.
