🆕 New Publication: A Brief Scale to Assess Dark Personality Traits

📅 August 2025 | David Pineda, Manuel Galán, Pilar Rico-Bordera, José A. Piqueras
📘 Published in Journal of Forensic Psychology Research and Practice
🔗 Read the full article here

Can we assess Machiavellianism, Psychopathy, Narcissism, and Sadism in just 5 minutes?

We introduce the Interpersonal Antagonism Scale (IAS), a brief, reliable, and valid instrument for measuring the Dark Tetrad traits in Spanish-speaking populations. Based on the SD3 and ASP, the IAS assesses these traits using just 20 items.

🔍 Key Highlights

• 20-item scale: 5 items per trait (Narcissism, Machiavellianism, Psychopathy, Sadism).
• Strong factor structure (CFA) and acceptable reliability (α and ω ≥ .76 in most subscales).
• Gender invariance confirmed.
• High convergent and discriminant validity: strong correlations with SD4, HEXACO, and SDQ.
• Good test–retest stability confirmed.

👥 Who might find this useful?

Researchers, forensic professionals, educators, and students seeking a brief yet robust tool to study dark personality traits and their links to antisocial behavior.

📥 Click here to access the full article.