For centuries, theologians have grappled with the fundamental duality of the human spirit, positing that our inner core is a constant battlefield between the tendency toward moral failings and the aspiration to do good. While these concepts have long been the domain of philosophy and religious doctrine, modern psychology has historically approached the subject through a more clinical lens. Psychologists have frequently focused on the "Dark Triad"—a cluster of malevolent personality traits consisting of narcissism, psychopathy, and Machiavellianism. These traits, often contrasted with the "bright side" of personality—which emphasizes happiness, optimism, and altruism—have dominated the psychological discourse. Yet, there remains a persistent curiosity about whether human personality can be systematically mapped onto the traditional dichotomy of sin and virtue.
As is common across many artistic and intellectual disciplines, the fascination with the darker aspects of human nature often outweighs the effort to define, measure, and celebrate the good. However, a significant new development in the field of personality research suggests that we are moving toward a more balanced, empirical understanding of our moral landscape.
Psychology Tackles the Age-Old Duality of Vices and Virtues
In a recent study conducted by Adrian Furman and his colleagues at the Norwegian Business School (2026), researchers have introduced a new self-rating questionnaire designed to bridge the gap between abstract moral concepts and clinical measurement. Historically, the "Vices and Virtues Scale" was limited in scope, testing only for vices and relying on single-item ratings for each transgression. Furman’s team recognized that this narrow approach failed to capture the complexity of human behavior. By expanding their instrument to include positive qualities and aggregating self-ratings into longer, more robust seven-item scales, the authors aimed to create a more reliable and nuanced diagnostic tool.
The conceptual significance of this work lies in its attempt to quantify morality. By turning sins and virtues into measurable data points, researchers can now compare these qualities against established personality instruments that are believed to predict whether an individual is predisposed toward moral excellence or moral failure. This is where the dark triad—often expanded in contemporary research to include sadism, forming the "dark tetrad"—becomes a vital point of comparison.
It is worth noting that the field of personality psychology is currently undergoing a period of self-reflection. Some experts have begun to argue that the dark triad and dark tetrad labels are becoming overly simplistic, lacking the necessary validity to explain the complex, overlapping nature of human personality. These critics contend that the terms are inherently subjective and that these traits do not always organize themselves into neat, predictable clusters. Despite these reservations, the individual components of these clusters remain useful variables for studying the relationship between specific personality traits and the manifestation of sins and virtues.
To make these concepts more accessible, researchers often translate them into lay terminology: Machiavellianism is viewed as being "crafty," narcissism as feeling "special," psychopathy as being "wild," and sadism as being "mean." Theoretical models suggest that these traits, whether viewed individually or as part of a collective, share a measurable relationship with a person’s self-reported sinfulness or virtuousness.
The Self-Rated Sins and Virtues (SSRV) Scale
In their pilot study, Furman and his colleagues tested the statistical viability of their new measure, the "Self-Rated Sins and Virtues" (SSRV) scale. Participants were asked to rate themselves on a scale of 0 to 100 across a spectrum of classical vices and virtues. The vices included pride (conceit, immodesty, vainglory), greed (avarice, covetousness, ravenousness), lust (inordinate, illicit sexual desire), envy (jealousy, possessiveness, resentment), gluttony (drunkenness, indulgence, excess), wrath (anger, irritation, annoyance), and sloth (laziness, idleness, lack of energy).
Conversely, the virtues were categorized as humility (modesty, humbleness, meekness), charity (compassion, consideration, morality), chastity (celibacy, self-restraint, control), gratitude (thankfulness, recognition), temperance (restraint, abstinence, moderation), patience (tolerance, forbearance, self-control), and diligence (conscientiousness, industriousness, effort).
The results of the pilot study, which involved a sample of 300 participants with an average age of 48, provided fascinating insights into the demographic distribution of these traits. On average, men scored 38 on the scale of sins, while women scored 33. Interestingly, both genders scored significantly higher on virtues, with men averaging 55 and women 59—a gap that researchers noted as statistically significant.
The data provided strong support for the statistical structure of the SSRV, confirming that the 14 items fit neatly into two seven-item scales. Perhaps most revealing was the correlation between the dark tetrad traits and the SSRV scores. Participants who scored high on psychopathy were not only more likely to admit to their sins but were also more likely to deny their virtues. As the authors suggested, it is possible that individuals with high psychopathic traits are genuinely proud of their perceived sinfulness rather than viewing a virtuous profile as an ideal to which they should aspire.
Personality Traits and the Moral Compass
A second study, utilizing a similar demographic sample, explored how these moral scores related to broader personality indicators, specifically the "High Potential Trait Indicator" (HPTI). By expanding the analysis beyond the dark tetrad, the HPTI allowed the researchers to assess traits such as conscientiousness, adjustment, curiosity, courage, ambiguity tolerance, and competitiveness. The findings revealed that the SSRV successfully aligned with these established personality metrics.
Across both studies, "pride" emerged as the most commonly self-rated sin, while "gratitude" was identified as the most frequently claimed virtue. The data also suggested that age and optimism play a role in moral self-perception; older participants and those who identified as optimistic were more likely to report lower levels of sin and higher levels of virtue.
The researchers also uncovered meaningful links between personality and morality. Participants who scored low on conscientiousness, adjustment, and courageousness were more likely to rate themselves higher on the sin scale and lower on the virtue scale. Furthermore, the findings regarding competitiveness were particularly illustrative. Competitive individuals were more likely to admit to "sinning," while curious individuals were more likely to see themselves as virtuous. The authors noted that the association between competitiveness and sinfulness is logical; to a highly competitive person, the actions defined as "sins"—such as aggressive ambition or disregard for others—may be rationalized as necessary steps to gain an advantage. This suggests that competitive individuals may operate with fewer moral "guardrails," potentially justifying behavior that others might find objectionable in their pursuit of personal success.
Navigating the Future of Moral Assessment
The SSRV is designed to be a quick, accessible tool, taking less than three minutes to complete. This makes it a practical instrument for individuals seeking a "morality check" in their daily lives. However, researchers remain appropriately cautious about the limitations of self-report measures. The concepts of impression management and social desirability—the tendency for people to present themselves in a favorable light—always lurk in the background of such assessments, especially when the criteria involve loaded and culturally sensitive terms like "illicit sexual desire."
Furman and his colleagues acknowledged that self-perception does not always conform to outward behavior. A person may rate themselves as highly virtuous while acting in ways that contradict those beliefs. Despite these inherent challenges, the researchers argue that the act of self-reflection remains valuable. By moving morality out of the realm of vague, abstract concepts and into the realm of concrete, measurable data, the SSRV provides a framework for individuals to examine their own strengths and weaknesses.
Ultimately, this research suggests that while psychology has spent much of its history fixated on the "dark side" of human nature, there is a growing appetite for a more holistic view. By engaging with these tools, individuals may find a path toward better understanding their own moral landscape, providing a clearer view of the light and dark within themselves and perhaps finding the balance necessary to navigate their future behavior with greater intention.
