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Academically Reviewed

Based on the research of Jeremy D. W. Clifton at the University of Pennsylvania.

Primal World Beliefs Test (PI-99)

What fundamental assumptions shape how you see the world?

Developed by Jeremy D. W. Clifton and colleagues at the University of Pennsylvania in 2019, the Primals Inventory explores the fundamental lenses through which you interpret reality.

Rather than measuring your personality traits or mood, this assessment uncovers your core assumptions about the nature of the world—whether you view life as safe, enticing, alive, or purposeful. How do your fundamental worldviews shape your daily experience? To take the test, enter your input below.

Question 1 of 99

I notice that most situations tend to get worse over time.

Disagree
Agree

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The Primal World Beliefs Test is based on the Primals Inventory, PI-99 (PI-99), developed in 2019 by Jeremy D. W. Clifton and a collaborative team of researchers at the University of Pennsylvania. The researchers sought to systematically identify and measure the foundational, unspoken assumptions people hold about the character of the world as a whole. While psychological science has long studied how individuals view themselves, their relationships, or specific life events, the PI-99 was created to capture broad, overarching beliefs that color human perception, emotional responses, and life decisions across every domain of daily life.

Primal world beliefs—often referred to simply as primals—are not opinions about specific political topics, societal events, or temporary moods. Instead, they are deep-seated interpretive frameworks that act as default filters for how we process reality. The PI-99 identifies primary, secondary, and tertiary dimensions that structure everyday outlooks. At the highest level, individuals vary in whether they view the world as fundamentally Good, Safe, and Enticing, or alternatively dangerous, dull, and harsh. These core stances break down into eighteen specific dimensions, including whether the universe is perceived as abundant, interconnected, understandable, cooperative, and beautiful, or whether life feels barren, fragmented, chaotic, and competitive.

Other key primals measure beliefs about agency, purpose, and cosmic order. Subscales such as Purposeful, Meaningful, and Needs Me evaluate whether you view life events as intentional and feel you have an important contribution to make, rather than viewing existence as indifferent or arbitrary. Similarly, the Just, Improving, and Resilient scales assess whether you expect fairness to prevail, conditions to get better over time, and systems to withstand disruption. Dimensions like Changing, Hierarchical, and Humor reflect whether you see reality as fluid, structured, and amusing or rigid, flat, and solemn. Together, these eighteen facets form a detailed, multidimensional map of your psychological landscape.

Empirical research into primal world beliefs demonstrates that these fundamental assumptions correlate strongly with psychological well-being, life satisfaction, career trajectories, and coping styles. Interestingly, empirical studies have shown that primals are remarkably stable over time and are only weakly linked to objective life circumstances or demographic factors. Two individuals living in the exact same neighborhood or working in the same profession can hold dramatically different primals, profoundly shaping how they interpret adversity, pursue opportunities, and build relationships. Believing the world is inherently safe, abundant, and enticing, for example, is strongly associated with curiosity, proactivity, resilience, and subjective happiness.

Your personalized results profile displays individual scores across each of the eighteen distinct primals measured by the PI-99. When comparison markers appear on your chart, these population markers are estimates from published samples, not validated percentiles. They are provided to give helpful context on how individual worldview scores typically distribute across broader study cohorts, allowing you to reflect on where your interpretive habits fall relative to published averages.

This test is designed strictly for educational, personal, and self-exploratory purposes. It is not a psychological evaluation, mental health screening, or clinical diagnosis. This online assessment is based on the Primals Inventory, PI-99, but is independent of and not affiliated with the original researchers or the University of Pennsylvania.

References

  • Clifton, J. D. W., Baker, J. D., Park, C. L., Yaden, D. B., Clifton, A. B. W., Terni, P., Miller, J. L., Zeng, G., Giorgi, S., Schwartz, H. A., & Seligman, M. E. P. (2019). Primal world beliefs. Psychological Assessment, 31(1), 82-99.

Primal World Beliefs Test (PI-99)

Why Use This Test?

1. Free and instant. Complete the questionnaire online at no cost and receive your comprehensive primal world beliefs profile immediately without registering.

2. Research-grounded. Based on the Primals Inventory (PI-99) developed by Clifton and colleagues at the University of Pennsylvania to systematically measure fundamental worldviews.

3. What your scores mean. Review clear, plain-language breakdowns across 18 distinct worldview dimensions to better understand the implicit assumptions shaping your daily perspective.