Calling Someone a Psychopath Drives Harsh Judgements Whatever the Label

Calling someone a “psychopath” — whether framed as a clinical diagnosis or as a set of personality traits — makes people judge that person more harshly, and no amount of personal scepticism or stigma about mental illness seems to soften the effect. That is the central finding of a new open-access study published in Current Psychology, which set out to test how the language used to describe psychopathy shapes public perception, and whether individual attitudes can moderate it.

A research team led by Katia C. Vione and Dean Fido recruited 477 adults through professional and social media networks, including LinkedIn, X and Reddit, alongside snowball sampling. After screening out people who did not meet inclusion criteria or who had more than five per cent missing data, the final sample had a mean age of 36.27 years and was 61.2 per cent female. Participants received no reimbursement and completed the survey in roughly twelve minutes on average. The study was pre-registered, and the anonymised data have been released as open data.

Each participant read one of six randomly assigned vignettes describing a single 30-year-old lawyer who had served nine months in prison for a theft at age 18 — a crime the character always claimed not to have committed, and for which an alibi was later confirmed. The vignettes varied only in two ways: the sex of the character, named Harry or Hannah, and the label attached to them. The character was described either with no label at all, as “with psychopathic personality traits”, or as “diagnosed with psychopathy”. Behavioural details — emotional shallowness, lack of care for others, impulsivity, egoism and living alone — were held constant across all versions, as were the character’s profession and criminal history.

After reading the vignette, participants completed the Attribution Questionnaire, a nine-item measure covering blame, anger, pity, help, dangerousness, fear, avoidance, segregation and coercion, scored so that higher composite scores indicated more negative attributions. They then filled in measures of their own psychopathic traits using the Self-Report Psychopathy Scale 4 Short Form, stigmatising attitudes towards mental illness using the agreement subscale of the Self Stigma of Mental Illness Scale, attitudes and beliefs about psychopathy using the 17-item Attitudes and Beliefs About Psychopathy scale, and self-monitoring using Snyder’s Self-Monitoring Scale. These latter measures served as moderators and covariates in the analysis.

The results were striking in their simplicity. In an analysis of variance, there was a main effect of label, such that vignettes featuring either the “psychopathic personality traits” or the “psychopathy diagnosis” wording were judged significantly more negatively than those with no label. Crucially, there was no statistically significant difference between the two label conditions — the trait description and the diagnosis produced equally harsh judgements. There was also a main effect of sex: male characters were viewed more negatively than female characters, and the two effects did not interact.

The moderation analyses delivered the study’s most unexpected result. The researchers ran separate models for participants who saw male vignettes and those who saw female vignettes, testing whether mental health stigma and baseline attitudes and beliefs about psychopathy moderated the link between label and attribution, after controlling for self-reported psychopathic traits and self-monitoring. Both models were statistically significant overall, but neither moderator predicted attributions nor moderated the baseline associations in either model. In other words, people who personally endorsed stigmatising views of mental illness, and people who held harsh beliefs about psychopathy, judged the labelled characters no differently from everyone else once the label was applied.

The authors offer two candidate explanations for why any mention of psychopathy triggers such uniform negativity. The first is a lack of public education: most people may be unaware that psychopathic traits exist on a continuum within the general population, and may instinctively connect the term with volatile, antisocial and dangerous behaviour. The second is misinformation spread through popular culture, where true crime shows depict “deranged” and “psychopathic” serial murderers, generating simplified and sensationalised narratives. The authors suggest that stereotype activation may occur even among people who explicitly reject such beliefs, effectively overriding personal attitudes when automatic processing dominates — a pattern supported by the weak correlations observed between the moderator variables and attribution scores.

The sex difference in judgements also carries interpretive weight. The authors note that psychopathy is culturally prototyped as male, violent and dangerous, with fictional portrayals overwhelmingly featuring men, and that psychopathic traits in women are often interpreted as less indicative of dangerousness. Because all the vignette characters were described as socially competent — a deliberate choice reflecting the adaptive aspects of psychopathy — the authors suggest that this feature may have been more easily reconciled with a female target, who is already a less typical instance of the “psychopath” stereotype, while male characters were judged as more prototypically psychopathic and therefore more deserving of harsh evaluation.

The correlational data added a further twist: participants with higher self-reported psychopathic traits showed more stigmatising attitudes towards mental health and more negative beliefs about psychopathy. The authors link this to empathy profiles, noting that deficits in affective empathy have previously been correlated with prejudice, and suggesting that people high in psychopathic traits may feel wariness towards others with similar trait profiles. The study had limitations the authors acknowledge: the vignettes were not pre-rated by independent experts, the design could not establish whether participants actually interpreted the trait vignette as a more dimensional representation, empathy was not measured, only composite scores of the psychopathy scale were used, and the sample suffered a relatively large attrition rate of 198 participants prior to analysis, which the team attributes to its social media sampling procedure.

The practical implications reach into courtrooms and newsrooms alike. Prior research reviewed by the authors shows that the “psychopath” label is often, though not always, linked to harsher mock-trial outcomes, including longer sentences and death penalty verdicts, and that comparative studies using other diagnoses yield weaker or nonsignificant associations with case outcomes. The authors recommend that media and legal systems adopt evidence-based communication strategies that avoid sensationalism and essentialist labelling, use precise behaviourally anchored descriptions, frame risk as probabilistic rather than deterministic, and pursue system-level solutions such as pre-publication checklists, editorial oversight, formal judicial training on the limits of diagnostic labels, and diagnostic minimalism in legal settings. They call upon scholars, practitioners and media sources to work collaboratively to improve public understanding of psychopathy, noting that without addressing structural and cultural drivers, efforts to reduce stigma may have limited impact.

Subject of Research: How labelling affects lay judgements of individuals described with psychopathy or psychopathic traits

Article Title: The effect of labelling on judgements of psychopathy as moderated by mental health stigma and baseline attitudes of psychopathy

Article References: C. Vione, K., Wallace, L., Mooney, R., Thatcher, A., Colman, R. D., Danton, I., Geier, V., Rigo, A., Commarmond, A., Falcão, R. P. A., Hammond, C., Sparks, B., & Fido, D. (2026). The effect of labelling on judgements of psychopathy as moderated by mental health stigma and baseline attitudes of psychopathy. Current Psychology, 45(21), Article 1639. https://doi.org/10.1007/s12144-026-10204-7

Image Credits: AI Generated

DOI: 10.1007/s12144-026-10204-7

Keywords: psychopathy, labelling effects, stigma, vignette study, attribution, mental illness stigma, media portrayal, legal settings, person-first language, sex differences, social perception, Current Psychology