AMBI Research
The Analog to Multiple Broadband Inventories (AMBI) provides a comprehensive personality assessment across 200+ scales from 8 major personality inventories.
Population Comparison Charts
Explore interactive bell curve visualizations comparing the schizoid population against the general population across all personality scales. See where the distributions differ most dramatically and understand the characteristic patterns of schizoid personality.
Schizoidness Scoring System
Our research has developed a novel “Schizoidness” scoring system that quantifies how closely an individual's personality profile matches the characteristic patterns observed in the schizoid population.
Full Scale Score
A comprehensive measure using all 200+ scales, weighted by how much each scale discriminates between schizoid and general populations. Each scale's contribution is proportional to the magnitude of difference between populations.
Key Scale Composite
Focuses on the 50 most discriminating scales (25 high, 25 low). These are the scales where schizoid individuals differ most dramatically from the general population, providing a more targeted assessment.
High Expression Scales
Scales where schizoid individuals score higher than average: Autonomy, Self-Reliance, Individualism, Deliberation, Modesty, Shyness with Strangers, Vector 1 (Internality), and more.
Low Expression Scales
Scales where schizoid individuals score lower than average: Social Closeness, Gregariousness, Warmth, Affiliation, Exhibition, Likes Parties, Attachment, Energy Level, and more.
How Scoring Works
1. Z-Score Calculation: Each scale score is converted to a z-score relative to the general population norms.
2. Direction Adjustment: For scales where schizoid individuals score lower, the z-score is inverted so that “more schizoid-like” always means a higher score.
3. Discriminative Weighting: Each scale is weighted by how much it discriminates between populations (the effect size of the difference).
4. Weighted Composite: The weighted z-scores are averaged to produce a final composite score representing overall similarity to the schizoid profile.
5. Standardized Rarity Index: The composite score is converted to a standardized scale (M=100, SD=15) similar to IQ scoring, making it easy to interpret relative rarity within the general population.
Limitations
While the AMBI provides valuable breadth across 200+ personality scales, it has limitations for understanding schizoid personality in depth. Some scales work well—Social Closeness, Gregariousness, Warmth, and Autonomy clearly differentiate schizoid from general populations. However:
Generic Items: The AMBI items were designed to measure general personality dimensions, not schizoid-specific constructs. Scales like “Warmth” or “Gregariousness” capture surface behaviors but miss the nuanced internal experience that defines schizoid phenomenology.
Missing Core Constructs: Key schizoid experiences are poorly represented: anticipatory vs. consummatory anhedonia, the distinction between social disinterest and social aversion, inner world richness, ego-syntonic solitude, affective restriction patterns, and the experience of observing life from behind a “glass wall.”
No Within-Group Differentiation: The AMBI can identify that someone differs from the general population in schizoid-typical ways, but it cannot distinguish between different schizoid presentations (e.g., covert vs. overt, secret schizoid patterns, or varying degrees of inner elaboration).
Behavioral Focus: Most AMBI scales measure observable traits and behaviors rather than the subjective phenomenological experience that is central to understanding schizoid personality from the inside.
For a more targeted assessment of schizoid-specific dimensions, see our Schizoid Five-Factor (S5F) assessment, which measures constructs like Hedonic Attenuation, Interpersonal Detachment, Affective Restriction, Inward Orientation, and Self-World Relationship with items specifically designed for the schizoid experience.
Included Personality Inventories
The AMBI synthesizes scales from 8 major personality assessment frameworks, providing unprecedented breadth of measurement: