Researchers
who have extensively studied how people behave in workplaces generally emphasize that personalities do not change.
"Stability in personality matters for organisations because it helps us understand people’s behavior in many work-related domains, including employee performance, social networks, employee withdrawal, and employee retention,” according to an Academy of Management Annals article.
Workplace-related research says the “Big Five” personality traits—neuroticism, extraversion, openness to experience, agreeableness, and conscientiousness—are “basic dispositions that ... endure through adulthood. Refer to my
article
that provides more information on the "Big Five."
Personality Drivers and Consequences of Workplace Mood
The following study
examined predictors and outcomes of individual mood variability in the workplace.
During a 3‐month weekly study, they collected data on personality (extraversion and neuroticism), positive and negative workplace mood, and job performance from 357 participants.
The study revealed a positive relationship between neuroticism and individual variability in negative mood, which in turn predicted individual variability in performance.
Results contribute to the understanding differences in individual mood variability, and they suggest expanding the mood – performance relationship from a static perspective to an individual dispersion perspective.
From a practical point of view, their results identify neuroticism as a potential risk factor for unstable performance, but they also give room for fostering predictable performance.
Key Take-outs
Individuals with higher neuroticism may be prone to fluctuations in negative mood at work and indirectly to inconsistent performance – this highlights the necessity of personality assessment in both personnel selection and development.
Interventions aimed at stabilizing mood can be an effective lever for stabilizing work performance. You read more of interventions at my
article
on using Acceptance Commitment Therapy