Study Links Parental Indulgence to Higher Levels of Dark Personality Traits

A growing body of research is highlighting how childhood experiences can shape socially challenging personality traits in adulthood. A new study published in Current Psychology finds that remembered parental indulgence is linked to higher levels of psychopathic and narcissistic traits, while genuine praise appears to foster more adaptive characteristics.

The work focuses on the so-called Dark Triad, a set of overlapping but distinct personality dimensions. Psychopathy is marked by low empathy, cruelty, and impulsivity. Machiavellianism involves cynicism and strategic manipulation, while narcissism centers on grandiosity, entitlement, and a craving for admiration.

Psychologists emphasize that these traits exist on a spectrum within the general population, not only in clinical cases. Some elements, such as social boldness or emotional steadiness under pressure, can be advantageous in competitive settings. This has sparked interest in understanding how early family environments help shape these patterns.

Breaking down dark personality traits

Rather than treating psychopathy, Machiavellianism, and narcissism as single constructs, recent models divide each into more specific components. Psychopathy, for instance, can be broken down into meanness, boldness, and disinhibition, a tendency to act on impulses without considering the consequences.

Narcissism can be separated into socially outgoing extraversion, defensive antagonism, and emotionally vulnerable reactions to failure. Machiavellianism can include hostile selfishness, ambition, and careful long-term planning. These facets allow researchers to detect subtle links between specific parenting styles and distinct outcomes.

Lead author Jennifer Vonk of Oakland University said the team wanted a more nuanced approach to understanding the origins of dark traits. She noted that newer three-factor models offered an opportunity to map particular dimensions, such as meanness or antagonism, onto specific aspects of parenting, including praise, indulgence, and status pressure.

How the study was conducted

The researchers surveyed 1,025 undergraduates at a Midwestern U.S. university, ultimately analyzing data from 720 participants who passed attention checks. The final sample was predominantly female and White, with an average age of just over 20 years, reflecting a relatively narrow segment of the broader population.

Participants completed online questionnaires about their personalities and their recollections of their primary caregivers. Parenting behaviors were measured using the Praise, Indulgence, and Status Parenting Scale, which assesses how often parents praised abilities, granted what the child wanted, or encouraged the pursuit of fame and prestige.

A modified Parental Bonding Instrument measured warmth and care, as well as behaviors that limited psychological autonomy, such as overprotectiveness or invasion of privacy. Separate validated measures assessed dark personality facets, including psychopathic meanness and boldness, Machiavellian hostility and planning, and narcissistic antagonism and extraversion.

Indulgence versus meaningful praise

Statistical analyses revealed a consistent pattern: high levels of recalled parental indulgence were associated with more problematic traits across all Dark Triad domains. Adults who remembered being overindulged tended to show greater psychopathic meanness, higher levels of disinhibition, and more antagonistic narcissism.

At the same time, indulgence was associated with lower scores on some potentially adaptive traits. These individuals reported lower levels of Machiavellian ambition and planning, as well as lower narcissistic extraversion, a trait associated with social confidence. The pattern suggests that giving children nearly everything they want may foster hostility and poor self-control rather than healthy assertiveness.

By contrast, parental praise showed an almost mirror-image pattern. High levels of remembered praise were associated with fewer hostile and impulsive tendencies and with greater social agency and confidence. Reinforcing a child’s sense of worth, without overvaluing or spoiling them, appeared to support more adaptive functioning.

The role of status and control

An emphasis on status produced a more complex mix of outcomes. Participants who recalled parents emphasizing success, fame, and prestige reported higher levels of boldness and drive, but also more manipulative and hostile traits. Pursuit of status appeared to strengthen both adaptive and maladaptive aspects of dark personality.

Another important factor was whether parents restricted psychological autonomy. Overcontrolling or intrusive parenting was associated with greater hostility, poorer impulse control, and stronger negative emotional reactions under stress. These findings align with previous research linking controlling family environments to both internalizing and externalizing difficulties.

Surprisingly, once other factors were taken into account, simple parental care showed only one strong independent association: lower levels of disinhibition. Vonk cautioned that this does not mean warmth is unimportant. Instead, she suggested that warmth and praise overlap conceptually, with praise likely capturing much of the same positive emotional climate.

Limits of the findings

The authors stress that their findings do not demonstrate that parenting styles directly cause dark traits in a simple, linear manner. The data are correlational and based on one-time self-reports, leaving open the possibility that individuals with higher levels of antagonism or impulsivity remember their childhood experiences differently from others.

The sample also consisted exclusively of college students, who are less likely to have experienced severe adversity or neglect. As a result, the range of early-life experiences may be narrower than in the general population, and the patterns could differ in clinical populations or among individuals with significant trauma histories.

Vonk emphasized that participants who scored highly on traits such as psychopathic meanness were not clinical psychopaths. Rather, they scored higher on a personality continuum within a non-clinical population. Future research involving broader and more diverse samples will be necessary to determine whether these patterns generalize to other groups.

What future research may explore

The team argues that multidimensional models of personality are essential when investigating early developmental influences. Adaptive aspects of dark traits, such as boldness or strategic thinking, may have different developmental origins than destructive characteristics such as cruelty or chronic deceit.

Vonk said she is interested in examining how adversity, trauma, and attachment styles between children and caregivers interact with parenting practices. Secure and insecure attachment patterns may either mitigate or amplify the effects of overindulgence, harsh control, or status pressure on later personality development.

The findings offer a practical takeaway for parents and caregivers. Providing consistent, affirming praise while avoiding overindulgence and excessive control may help foster confidence without encouraging the hostility and impulsivity that can emerge as darker personality traits in adulthood.

Article prepared by Victoria Caldwell.