The relationship between personality and work performance has long attracted the attention of both employers and job seekers. Individuals often seek careers that align with their personality, assuming that fit will increase both success and satisfaction. Organizations, on the other hand, attempt to identify personality traits that may predict performance in specific roles.
Yet the use of personality tests in recruitment has been consistently debated. A central concern is job relevance: whether the trait being measured is meaningfully connected to actual job requirements (Spector, 1999). Without clear evidence of this connection, personality assessment risks becoming both unfair to candidates and weak in predictive validity for organizations.
The issue, therefore, is not whether personality matters. It is whether the specific trait being evaluated genuinely contributes to performance in the role in question.
Despite these concerns, personality measures frequently appear in selection processes, sometimes with limited empirical justification. And especially, certain traits, particularly extraversion, are often implicitly treated as universally desirable characteristics, regardless of contextual demands.
This raises an important question: Is extraversion truly a general predictor of workplace success, or has it become an overgeneralized preference disguised as scientific selection?
In today’s business world, traits such as being sociable, talkative, energetic, assertive, and ambitious are often perceived as desirable. In short, these characteristics can largely be gathered under the umbrella of extraversion.
From a psychological perspective, the prominence of extraversion is closely linked to the development of modern personality research, particularly the emergence of the Big Five and the Five-Factor Model (Conte & Landy, 2013). However, understanding the rise of extraversion as an ideal requires looking beyond psychometrics. Cultural and economic transformations, especially those accompanying the Industrial Revolution, played a decisive role in reshaping which traits were socially rewarded.
In her book Quiet, Susan Cain (2013) traces the development of what she calls the “Extrovert Ideal.” She describes how the new economy began to favor individuals who were socially skilled, persuasive, and visibly confident: “The new economy calls for a new kind of man - a salesman, a social operator, someone with a ready smile, a masterful handshake, and the ability to get along with colleagues while simultaneously outshining them.” (p. 20). Over time, visibility became associated with competence. Media, business culture, and self-help discourse increasingly portrayed success as dependent on strong self-presentation, charisma, and the ability to stand out.
As a consequence, extraversion gained symbolic value beyond its psychological definition. The opposite end of the continuum, introversion, gradually became framed as less compatible with achievement. Yet this binary perception deviates from Carl Jung’s original formulation. Jung conceptualized extraversion and introversion as positions on a continuum reflecting orientation toward the external or internal world, rather than rigid categories (Waude, 2017).
From an organizational perspective, introversion does not imply social incompetence. As Cain (2013) notes, individuals high in introversion may prefer solitary work or small-group interactions, demonstrate strong listening skills, and engage in deeper reflection before expressing ideas. These characteristics may align well with certain task demands, particularly those requiring sustained concentration and analytical processing.
Is there a scientifically justified reason for the contemporary business system to implicitly expect introverts to behave like extroverts? In other words, are extraverts inherently more capable, more creative, or more effective? Is extraversion truly a prerequisite for success in roles such as sales? More broadly, does research consistently demonstrate that extraverts outperform introverts?
To approach these questions, it is necessary to examine empirical findings rather than cultural assumptions.
The concept of “interaction” itself deserves closer examination. Interaction does not only imply being active, assertive, or verbally dominant. The word itself contains two components: action and inter. The first refers to initiative and outward energy. The second refers to reciprocity, the space created for mutual exchange.
When sales roles are described as “interactive,” the emphasis is often placed on visible activity. The culturally dominant image of the successful salesperson is one of an energetic, persuasive, and socially dominant individual. Yet interaction also requires allowing the other party to participate actively. It involves listening, reading subtle cues, and giving space for clients to articulate their needs.
From this perspective, effective sales performance may depend not only on expressive energy but also on the ability to regulate one’s presence and create a balanced exchange.
Twenty-two years after Barrick and Mount’s influential meta-analysis, Adam Grant (2013) revisited the assumed advantage of extraversion in sales contexts. In a study conducted with 340 call center employees, Grant reported findings that challenged the traditional “extrovert ideal” of salesmanship.
Contrary to the expectation of a simple positive relationship, the association between extraversion and sales performance was found to be curvilinear rather than linear. Moderate levels of extraversion were associated with the highest performance, whereas very high levels were linked to lower sales outcomes.
This pattern suggests that excessive assertiveness and talkativeness may undermine effective interaction. Highly extraverted sellers may dominate conversations, prioritize expressing their own ideas, and overlook cues from the buyer. In such cases, the interactive balance necessary for understanding client needs can be disrupted (Grant, 2013).
The nonlinear nature of this relationship also reinforces Jung’s earlier conceptualization of extraversion and introversion as positions on a continuum rather than fixed categories. Performance does not appear to increase indefinitely with higher extraversion; instead, effectiveness may depend on finding an adaptive balance along the spectrum.
Another manifestation of the extrovert ideal in organizational life can be observed in the widespread adoption of collaborative work structures such as open offices, brainstorming sessions, and constant teamwork (Cain, 2013). These environments tend to reward visible participation, rapid idea generation, and comfort with high levels of social stimulation.
In such settings, traits commonly associated with extraversion (e.g., ease in social interaction, verbal spontaneity, and high stimulation tolerance) may become implicitly equated with competence. Conversely, employees who prefer to work independently, reflect before speaking, or operate more effectively in low-stimulation environments may be perceived as less engaged or less creative.
The problem does not necessarily lie in collaboration itself, but in the assumption that creativity and productivity must always emerge in highly interactive and immediately responsive formats. When organizational structures systematically privilege quick verbal contribution over reflective processing, certain working styles are disadvantaged.
In this sense, what appears as a deficit in the employee may instead reflect a misalignment between task demands, environmental design, and individual preferences.
Research by Jung, Lee, and Karsten (2011) further supports the argument that employees’ preferred working styles should be considered in organizational design. While brainstorming has already been criticized for sometimes inhibiting rather than enhancing individual creativity (Spector, 1999), their findings suggest that such formats may disadvantage certain personality profiles more than others.
In their study, extraverts outperformed introverts in idea generation only under high-stimulation conditions, specifically when more than twenty idea prompts were presented. Under low-stimulation or excessively high-stimulation conditions, no significant differences were observed between the two groups.
These results were interpreted in light of differences in attentional focus and arousal regulation. Drawing on Eysenck’s (1982) theory, extraverts who are characterized by lower baseline cortical arousal may benefit from environments rich in external stimulation. Introverts, who typically operate with higher baseline arousal levels, tend to perform better under conditions that allow sustained focus on a limited number of stimuli. When stimulation becomes excessive, it may interfere with their cognitive processing rather than facilitate it.
Some research has examined differences between introverts and extraverts not only in performance outcomes but also in withdrawal-related behaviors. In a study conducted with 89 university employees, Judge, Martocchio, and Thoresen (1997) reported a positive relationship between extraversion and work absenteeism. The authors suggested that extraverts’ stronger need for novelty and stimulation may partially explain this association.
This finding complicates the widely held assumption that extraversion is uniformly advantageous in organizational settings. While extraverts’ sociability and ease in interaction may support certain aspects of workplace adaptation, the same tendency toward stimulation-seeking may increase the likelihood of disengagement from repetitive or monotonous tasks.
Earlier research by Cooper and Payne (1967) similarly reported a positive correlation between extraversion and withdrawal behaviors. These results have been interpreted in light of arousal theory. Because extraverts are characterized by lower baseline cortical arousal, they may experience under-stimulation in repetitive job contexts and consequently show a greater tendency to disengage. In contrast, introverts who operate at higher baseline arousal levels may tolerate such environments more comfortably.
When these findings are considered together, it becomes clear that personality traits do not operate in isolation. Their relevance depends on context.
Extraversion may facilitate performance in roles that require sustained interpersonal engagement, where moderate levels of social energy can be beneficial. However, the evidence does not support the assumption that it is universally advantageous.
Performance appears to depend on the interaction between task structure, environmental stimulation, and individual differences in arousal regulation. Under some conditions, high extraversion may enhance outcomes; under others, it may contribute to disengagement or withdrawal. Likewise, introversion is not a deficit but a configuration of attentional and regulatory tendencies that may align well with specific demands rather than hinder performance.
REFERENCES
Barrick, M. R., & Mount, M. K. (1991). The Big Five personality dimensions and job performance: A meta-analysis. Personnel Psychology, 44(1), 1–26. https://doi.org/10.1111/j.1744-6570.1991.tb00688.x
Cain, S. (2013). Quiet: The power of introverts in a world that can’t stop talking. New York: Broadway Paperbacks.
Conte, J. M., & Landy, F. J. (2013). Work in the 21st century: An introduction to industrial and organizational psychology (4th ed.). Hoboken: Wiley.
Cooper, R., & Payne, R. (1967). Extraversion and some aspects of work behavior. Personnel Psychology, 20(1), 45–57. https://doi.org/10.1111/j.1744-6570.1967.tb02268.x
Eysenck, M. W. (1982). Endogenous determinants of arousal. In Attention and arousal (pp. 124–155). https://doi.org/10.1007/978-3-642-68390-9_7
Grant, A. M. (2013). Rethinking the extraverted sales ideal. Psychological Science, 24(6), 1024–1030. https://doi.org/10.1177/0956797612463706
Judge, T. A., Martocchio, J. J., & Thoresen, C. J. (1997). Five-factor model of personality and employee absence. Journal of Applied Psychology, 82(5), 745–755. https://doi.org/10.1037/0021-9010.82.5.745
Jung, J. H., Lee, Y., & Karsten, R. (2011). The moderating effect of extraversion–introversion differences on group idea generation performance. Small Group Research, 43(1), 30–49. https://doi.org/10.1177/1046496411422130
Spector, P. E. (1999). Industrial and organizational psychology: Research and practice (2nd ed.). Singapore: John Wiley & Sons.
Waude, A. (2017, February 2). Extraversion and introversion. Retrieved from https://www.psychologistworld.com/influence-personality/extraversion-introversion
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