Eysenck (1991) has proposed a three-factor model : psychoticism - extraversion - neuroticism.
Jason who is typically restless, anxious, and easily irritated, in terms of the Eysencks' basic factors would most clearly be classified as unstable.
The factor is: Emotional stability to emotional instability, or neuroticism. Individuals feel dissatisfied, angry or frustrated with others when their desires are not fulfilled.