Explore Dan Aykroyd's unique personality through Cattell’s 16PF lens — from comedic brilliance to structured thinking and neurodivergent creativity.

Dan Aykroyd: Neurodivergent Genius in Comedy and Culture

Dan Aykroyd is far more than a legendary comedian and screenwriter — he’s a creative force whose mind defies categorization. Best known for his work on Saturday Night Live, Ghostbusters, The Blues Brothers, and a host of iconic characters, Aykroyd’s comedic genius is deeply intertwined with his unconventional thinking, meticulous nature, and neurodivergent insight. This Personality Report of Dan Aykroyd examines his psychological profile through the 16 Personality Factors (16PF) developed by Raymond Cattell, revealing a rich and dynamic internal world.

Diagnosed in adulthood with Asperger’s Syndrome (a now-defunct but formerly used label on the autism spectrum), Aykroyd has credited aspects of his personality — his hyper-focus, detailed thinking, and unusual interests — with helping fuel some of his most successful creative endeavors. His blend of logic and eccentricity, order and improvisation, seriousness and wit, positions him as one of the most original minds in the history of comedy.

This report takes a trait-by-trait look into Aykroyd’s psychological architecture, exploring how his reasoning, liveliness, apprehension, and rule-consciousness contributed to a career that has reshaped film, television, and pop culture. Whether you admire his comedic timing or his paranormal fascinations, Dan Aykroyd represents a case study in how psychological diversity can lead to lasting creative innovation.

This in-depth personality report analyzes Dan Aykroyd using Cattell’s 16 Personality Factors, uncovering how traits like reasoning, liveliness, and sensitivity shaped his comedy and worldview.

Dan Aykroyd’s career is marked by both mainstream achievements and fringe fascinations. He co-created the Ghostbusters franchise based on his real-life obsession with paranormal phenomena — a trait linked to high abstractedness and openness to change. He’s also a business owner, jazz enthusiast, and UFO investigator, proving that his interests are as layered as his comedy. His neurodivergence is not an aside to his story; it is central to his character construction, comic pacing, and lifelong attention to detail.

His legacy is also shaped by collaborations and close bonds with fellow comedians, especially the late John Belushi. These relationships were grounded in shared creative intensity and emotional depth — traits informed by Aykroyd’s warmth, vigilance, and strong loyalty. However, his strong-mindedness and intensity have also made him a figure of occasional controversy or creative clashes, possibly tied to traits like dominance and perfectionism.

This report will explore all 16 traits, including how his childhood challenges and adult self-awareness contributed to a unique psychological profile. By the end, you’ll understand why Aykroyd’s inner world is as compelling as any character he’s brought to life — and how embracing complexity and difference became the foundation for comedic brilliance.

Emotional Generosity and Loyal Attachment (Warmth) in Dan Aykroyd

Dan Aykroyd scores a relatively high 4 out of 5 in warmth, which in Cattell’s framework reflects a person’s emotional availability, friendliness, and tendency toward affectionate interpersonal behavior. While Aykroyd may initially present as cerebral or even eccentric, those close to him — both personally and professionally — consistently describe him as genuinely kind, loyal, and emotionally invested in the people he cares about.

His decades-long friendships with fellow comedians, musicians, and collaborators demonstrate a type of emotional loyalty that’s not performative but deeply rooted. His connection with John Belushi was especially profound — a brotherhood of creativity, mischief, and vulnerability. After Belushi’s passing, Aykroyd paid tribute through continued creative work, public memories, and an enduring emotional bond that speaks to long-term relational depth.

Aykroyd’s warmth is also evident in his ability to humanize outlandish characters. From Elwood Blues to Ray Stantz, he injects eccentricity with empathy, bringing a subtle kindness to roles that might otherwise feel cartoonish. This suggests a creative mind that doesn’t merely observe people for imitation — he feels their stories, quirks, and inner conflicts.

He is also known to be generous with his time, supporting charities, small businesses, and friends’ projects. Despite his fame, he frequently displays a down-to-earth nature and sense of camaraderie. He may not exhibit loud emotional displays, but his actions consistently reflect a nurturing, protective instinct — particularly for creative peers and cultural traditions.

In sum, Dan Aykroyd’s warmth is expressed through loyalty, service, and emotional sincerity. He builds relationships that last, honors those who shaped him, and uses his characters to reflect a world where even the weird are worthy of love.

High Intellectual Curiosity and Creative Intelligence (Reasoning) in Dan Aykroyd

Dan Aykroyd earns a maximum score of 5 out of 5 in reasoning, the trait in Cattell’s framework associated with abstract thinking, problem-solving, and intellectual sharpness. Aykroyd’s intelligence is not just academic — it is dynamic, associative, and unusually interdisciplinary. His ability to blend complex ideas into humorous, digestible formats places him among the most intellectually versatile performers in comedy history.

He is not only a brilliant writer and improviser — he’s also deeply informed on topics ranging from quantum physics to parapsychology to musicology. This wide knowledge base plays into his most famous work: Ghostbusters was inspired by his real-life fascination with paranormal studies and government files on unexplained phenomena. Few would think to combine particle physics, comedy, and horror — but Aykroyd did, and made it iconic.

His reasoning style reflects both logical precision and imaginative freedom. He builds comedic characters with layers of nuance: strange speech patterns, elaborate backstories, and bizarre belief systems that are often grounded in research or satire. Whether he’s playing a fast-talking senator or a haunted scientist, he creates roles that challenge both audience perception and genre expectation.

Importantly, Aykroyd’s intelligence also manifests in pattern recognition. He often speaks about noticing rhythms in speech, movement, and story arcs — evidence of a mind wired to find systems in chaos. This same trait helps him write effective scripts, improvise within structured skits, and build brands like the Crystal Head Vodka line, which merges storytelling with aesthetics and spirituality.

In short, Aykroyd’s reasoning ability is what makes his comedy timeless. He doesn’t just tell jokes — he engineers cognitive playgrounds full of layered meaning, imagination, and intellect.

Emotional Complexity and Coping Through Structure (Emotional Stability) in Dan Aykroyd

Dan Aykroyd reflects a moderate level of emotional stability, scoring 3 out of 5 in this factor. Emotional stability in Cattell’s model refers to how calm, resilient, and secure a person feels in the face of stress or emotional turbulence. While Aykroyd is not known for dramatic emotional displays or instability, he has openly discussed challenges tied to anxiety and obsessive thoughts — including those related to his diagnosis on the autism spectrum.

He has shared that as a child, he experienced repetitive behaviors and intense fixations. Rather than viewing these traits as problems, Aykroyd integrated them into his creative process. His focus on ghost-hunting, police systems, and conspiracy theories — while seemingly quirky — were emotionally soothing frameworks that allowed him to organize overwhelming thoughts and feelings into structure.

Professionally, Aykroyd demonstrates composure. He handles fame without courting scandal, and has remained consistent over decades in his performances, business ventures, and interviews. This suggests emotional regulation rooted in routine, focus, and purpose. When he experiences pressure, he appears to channel it into productivity — whether it’s a new screenplay or a passion project.

That said, Aykroyd’s humor often reflects underlying tensions. His characters are neurotic, eccentric, and prone to obsessive spirals — reflecting a deep awareness of internal conflict. Rather than hide emotional complexity, he stylizes it into comedy. This creative transmutation is both therapeutic and entertaining, indicating a man who understands how to use emotion as creative currency.

In sum, Aykroyd’s emotional stability is managed through systems, creativity, and strategic self-expression. While he may experience internal restlessness, his ability to direct it outward gives him longevity and emotional credibility as both an artist and thinker.

Structured Values and Ethical Intelligence (Rule-Consciousness) in Dan Aykroyd

Dan Aykroyd scores a high 4 out of 5 in rule-consciousness, a trait associated with adherence to personal codes, structured thinking, and internalized systems of order. While often seen as zany or offbeat in his performances, Aykroyd’s underlying personality is guided by a strong sense of discipline, ethics, and respect for institutional structure.

This is evident in both his real-life interests and the characters he creates. Aykroyd has long held a fascination with law enforcement, civil order, and formal systems. He is an honorary police officer in multiple jurisdictions and has expressed admiration for the structure and accountability that police work represents. This isn’t just admiration — it’s a reflection of how he finds comfort and meaning in clear codes of conduct.

Even in comedic roles, Aykroyd often portrays characters who, despite being eccentric, are driven by internal order: think Ray Stantz’s scientific obsession with containment protocols in Ghostbusters, or Elwood Blues’ ritualistic behavior in The Blues Brothers. These characters mirror Aykroyd’s own rule-consciousness — quirky on the surface, but governed by a personal logic underneath.

Professionally, he is known to be highly dependable, on time, and prepared. He values roles, ranks, and responsibilities, both on set and in real life. This trait also helps explain his interest in systems like jazz (structured improvisation) and military history — disciplines that combine artistry with order.

In summary, Aykroyd’s rule-consciousness gives him psychological grounding and behavioral consistency. It allows him to thrive within creative chaos by creating internal rules and systems to follow — both for himself and the characters he brings to life.

Expressive Humor and Playful Intelligence (Liveliness) in Dan Aykroyd

Dan Aykroyd scores the highest possible 5 out of 5 in liveliness, a trait associated with spirited energy, spontaneity, and humorous expression. One of the hallmarks of Aykroyd’s career is his ability to blend intellectual wit with wild improvisation, making him a rare example of a performer who is both cerebral and playfully unpredictable.

His characters on Saturday Night Live often leaned into this energy — fast-talking salesmen, frenetic government workers, deadpan weirdos. These weren’t just scripts; they were showcases of raw kinetic creativity. Aykroyd is known for improvising entire stretches of dialogue, changing accents, speeding up speech, or throwing in obscure references just to see if the audience would catch them. This is classic high-liveliness behavior: joyful, explorative, and driven by the thrill of surprise.

Off-screen, he maintains this energy in interviews and public appearances. He’s excitable, expressive, and often veers into tangents with intense enthusiasm — especially when discussing niche interests like UFOs, jazz, or obscure Canadian history. This zest is not performative; it’s woven into the fabric of how his mind works.

Liveliness also allows Aykroyd to inject humanity into eccentric characters. His comedic timing often relies on unexpected bursts of energy or tonal shifts, which engage audiences and disrupt predictability. This keeps his work fresh and multifaceted, even decades into his career.

In sum, Dan Aykroyd’s high liveliness gives his work vibrancy, warmth, and elasticity. It balances his structured personality with a sense of fun, proving that even the most disciplined minds can be delightfully chaotic in all the right ways.

Public Presence with Selective Vulnerability (Social Boldness) in Dan Aykroyd

Dan Aykroyd scores a balanced 3 out of 5 in social boldness, which in Cattell’s model refers to confidence in social settings, willingness to take risks with expression, and tolerance for scrutiny. While Aykroyd is undoubtedly a public figure with tremendous stage presence, his social boldness is more situational than absolute.

On camera or on stage, Aykroyd radiates charisma and confidence. He’s quick-witted, expressive, and unfazed by live audiences — often taking creative risks in skits, improvisation, and guest appearances. His ability to command attention is part of what made him a standout on Saturday Night Live and in live comedy circuits.

However, in personal or unscripted social settings, Aykroyd tends to be more guarded. He has acknowledged anxiety and difficulty navigating certain interpersonal dynamics, particularly in unstructured or unpredictable conversations. This suggests that his boldness is intellectually powered but emotionally measured.

He is selective about when and how he appears in public, often avoiding celebrity culture in favor of more controlled engagements. When discussing topics he’s passionate about — such as the paranormal or small business advocacy — he becomes animated and bold. But in press-heavy or emotionally exposed moments, he may step back or redirect focus onto the topic, not himself.

In essence, Dan Aykroyd’s social boldness is adaptive rather than fixed. He’s a confident communicator when armed with knowledge or performance structure, but may retreat when emotional ambiguity or overexposure is involved. This allows him to balance authenticity with privacy, while still being a powerful presence on the public stage.

Empathic Depth Beneath Comedic Armor (Sensitivity) in Dan Aykroyd

Dan Aykroyd scores a strong 4 out of 5 in sensitivity, a trait that reflects emotional receptivity, empathy, and a concern for others’ feelings. While he is known for his humor and intellect, those close to Aykroyd consistently describe him as emotionally aware, highly responsive to people’s needs, and quietly compassionate.

His performances often tap into emotional nuance, portraying characters who are vulnerable, misunderstood, or obsessive but loveable — suggesting that he deeply identifies with emotional undercurrents and the human condition. Characters like Ray Stantz from Ghostbusters or Louis Winthorpe III in Trading Places blend comedic absurdity with emotional accessibility, making audiences feel safe in their weirdness.

Aykroyd has also demonstrated sensitivity off-screen. He speaks with passion about the loss of friends like John Belushi, supports causes related to autism and neurodiversity, and maintains long-term personal and professional relationships — signs of someone who values emotional connection over superficial ties.

While his emotions are often translated through intellectual filters or comedic timing, they are deeply present. His love for tradition, spiritual curiosity, and appreciation for ritual and music also hint at a soul that resonates with meaning and beauty, even when masked by logic and wit.

In sum, Dan Aykroyd’s sensitivity is refined, protective, and heartfelt. It helps him connect to audiences, care deeply for those in his inner circle, and bring humanity to even the most bizarre of comedic creations.

Healthy Skepticism and Trust with Boundaries (Vigilance) in Dan Aykroyd

Dan Aykroyd displays a balanced 3 out of 5 in vigilance, the trait that reflects how skeptical, wary, or guarded a person is in their interactions. While Aykroyd is not suspicious by nature, he tends to keep a protective distance until he feels secure — an approach that blends strategic trust with intellectual scrutiny.

Professionally, Aykroyd is known to be cautious about whom he partners with creatively. He prefers long-term collaborators, particularly those who understand and respect his rhythm and precision. His close-knit working relationship with individuals like Harold Ramis and John Belushi illustrates how he forms deep bonds built on trust and shared purpose.

He also exhibits a degree of wariness when discussing the entertainment industry, often speaking critically about fame culture or media hype. However, he doesn’t isolate himself — instead, he uses humor, intelligence, and focus to navigate social dynamics, often keeping his more personal beliefs reserved for interviews or trusted contexts.

Interestingly, his vigilance extends into his belief systems. His fascination with conspiracies, paranormal phenomena, and the metaphysical suggests a mind that is open to possibilities but driven by critical thinking. He doesn’t accept things blindly; he evaluates, collects information, and then decides what feels right within his worldview.

In summary, Dan Aykroyd balances openness with discretion. His vigilance allows him to protect his authenticity while still participating actively in creative and public life. It’s less about distrust, and more about selectivity — ensuring his mental space is reserved for what truly matters.

Visionary Imagination and Thematic Complexity (Abstractedness) in Dan Aykroyd

Dan Aykroyd scores a full 5 out of 5 in abstractedness, a trait associated with imaginative thinking, philosophical pondering, and a preference for ideas over concrete detail. From ghost theories to jazz improvisation, Aykroyd thrives in conceptual territories where reality and speculation coexist.

Perhaps more than any of his peers, Aykroyd has made a career out of exploring the surreal and integrating it into mainstream narratives. Ghostbusters was born from a deep personal interest in the supernatural and metaphysical, and he insisted on weaving that authenticity into the film. Similarly, his fascination with alien life, spiritual energy, and ancient symbols finds its way into both his performances and his business ventures — including the branding of Crystal Head Vodka.

Even in his comedy, Aykroyd rarely sticks to the literal. His characters are often archetypes that represent broader social ideas — paranoia, obsession, loyalty, loneliness — all wrapped in absurdity. This shows an intuitive grasp of metaphor and the ability to layer thematic complexity under humor.

Off-screen, his interests span far beyond entertainment. He engages in deep conversations about quantum physics, alternate dimensions, and Indigenous spiritual practices — not as a novelty, but as intellectual exploration. He connects dots between traditions, theories, and cultural systems, often arriving at insights that defy mainstream logic but spark new ways of thinking.

In essence, Dan Aykroyd is not just a performer — he’s a philosopher wrapped in a comedian’s body. His abstractedness powers every script, sketch, and side business he touches, allowing him to merge intellect with wonder in a way few others can replicate.

Selective Openness and Layered Identity (Privateness) in Dan Aykroyd

Dan Aykroyd scores a moderate 3 out of 5 in privateness, indicating a personality that is selectively open — transparent about certain topics, but guarded in emotionally vulnerable spaces. In Cattell’s model, this trait evaluates how readily a person reveals their inner thoughts and intentions. Aykroyd strikes a balance: when he chooses to share, he does so with depth and conviction, but he also maintains clear boundaries between public and personal life.

He has spoken openly about his neurodivergence, experiences with obsessive behaviors, and lifelong interests in the supernatural — all topics that many public figures might avoid. Yet, despite this openness, Aykroyd carefully curates what aspects of his emotional world are made public. His disclosures tend to focus on ideas and experiences, not intimate relationships or private emotions.

In interviews, he is charismatic and forthcoming, but rarely introspective in the traditional sense. He’s more likely to dive into the specifics of how a proton pack works than discuss his childhood fears or personal heartbreaks. This intellectual redirection is a hallmark of moderate privateness — sharing when there’s purpose, withholding when there’s vulnerability.

Professionally, he seems to prefer working with long-trusted collaborators, suggesting that his emotional transparency is reserved for those who have earned it. His loyalty is legendary, but so is his control over narrative — he rarely reacts impulsively, choosing instead to present a consistent and thoughtful version of himself to the world.

In essence, Dan Aykroyd’s privateness is not about hiding — it’s about managing access to his inner world in a way that protects his energy and sustains his creativity.

Neurotic Awareness and Resilient Self-Belief (Apprehension) in Dan Aykroyd

Dan Aykroyd scores a middle-range 3 out of 5 on apprehension, reflecting a personality that contains elements of self-awareness, anxious thinking, and thoughtful self-monitoring, while also demonstrating resilience and functional confidence. In Cattell’s model, apprehension refers to self-doubt, worry, or emotional insecurity — areas where Aykroyd has shown both struggle and triumph.

He has openly discussed being diagnosed with Asperger’s Syndrome and living with traits of OCD and anxiety. These conditions often manifest as internal tension, self-questioning, and sensitivity to sensory or emotional overload. Aykroyd’s honesty in acknowledging these aspects of his experience suggests a self-aware and introspective mindset.

At the same time, he has built a career based on confidence in his ideas — pitching and co-writing Ghostbusters despite skepticism, managing businesses, and performing live comedy on national television. These are not the actions of someone dominated by self-doubt, but rather someone who channels internal apprehension into structured creativity.

His approach to stress appears to involve converting worry into productivity. Obsessive thoughts become detailed characters. Paranormal fears become Hollywood blockbusters. This alchemy — turning anxiety into art — is one of Aykroyd’s defining psychological strengths.

In conclusion, Dan Aykroyd lives with internal apprehension, but he transforms it into something useful. He walks the line between anxious realism and confident execution — a tension that gives his work its energy and his persona its relatability.

Inventive Spirit and Embrace of the Unusual (Openness to Change) in Dan Aykroyd

Dan Aykroyd scores a maximum 5 out of 5 in openness to change, making him one of the most forward-thinking and flexible personalities among his peers. In Cattell’s framework, this trait reflects a person’s willingness to explore new ideas, challenge convention, and embrace transformation. Aykroyd has built a career — and a lifestyle — on this very principle.

He consistently pursues unconventional subjects: paranormal activity, alternative energy, conspiracy theories, and Indigenous spirituality. Rather than dismissing what is unexplained, he embraces it — turning it into film, comedy, or conversation. This willingness to traverse the weird, the fringe, and the controversial reflects a mind that is psychologically elastic and intellectually adventurous.

Professionally, Aykroyd adapts to new formats and genres with ease. He transitioned from live television to blockbuster movies, from sketch comedy to business branding, from traditional roles to voice acting and documentaries. He’s never stayed in a single box — instead, he seeks out the next creative evolution.

He is also open to self-reinvention. Whether it’s embracing his neurodivergent identity or building a vodka brand inspired by crystal skull mythology, Aykroyd constantly defies static definitions. This isn’t rebellion for its own sake — it’s an authentic expression of a mind that thrives on novelty and discovery.

In short, Dan Aykroyd is the embodiment of openness to change. His curiosity, flexibility, and refusal to conform have made him a cultural icon not just for what he’s done — but for how he thinks.

Creative Autonomy and Personal Mission (Self-Reliance) in Dan Aykroyd

Dan Aykroyd scores a high 4 out of 5 in self-reliance, which in Cattell’s model reflects one’s preference for working independently and relying on internal judgment. Aykroyd’s career reflects a strong drive toward creative ownership and personal mission — traits that have allowed him to excel across diverse creative, business, and intellectual landscapes.

From co-writing Ghostbusters to creating characters for SNL with minimal collaboration, Aykroyd has always thrived when given the space to develop his own concepts, rules, and worlds. He’s not dependent on external validation to pursue unusual ideas — in fact, he’s often ahead of cultural trends, drawing inspiration from deep personal interests like ufology, spiritualism, and historical systems.

His entrepreneurial ventures, such as launching Crystal Head Vodka and engaging in advocacy for neurodivergent individuals, also reflect a confident independence. While he surrounds himself with trusted collaborators, his decisions seem to be driven by internal vision and conviction rather than peer influence or industry expectation.

This self-reliance empowers him to turn niche ideas into mainstream success, staying true to his beliefs while still adapting to the demands of modern audiences. He often functions as a “one-man think tank” — developing, refining, and promoting ideas rooted in long-standing passions.

In essence, Dan Aykroyd’s high self-reliance makes him both a cultural outlier and a consistent innovator. He listens, but ultimately follows his own voice — and history has shown, it’s one worth following.

Detail-Driven Creativity and Systemic Accuracy (Perfectionism) in Dan Aykroyd

Dan Aykroyd scores a high 4 out of 5 in perfectionism, indicating a personality that is structured, detail-conscious, and dedicated to executional precision. Though his comedic style may appear improvisational and freewheeling, Aykroyd is known for painstaking research, structured writing, and thorough preparation.

He is famously meticulous about technical accuracy — especially when dealing with topics that matter to him, such as ghost hunting technology, scientific language, or historical context. In Ghostbusters, his jargon-filled script wasn’t just comic — it was anchored in actual pseudoscientific theories and terminologies he had studied for years.

His perfectionist tendencies also extend to character work. Whether it’s speech patterns, wardrobe decisions, or ideological quirks, Aykroyd imbues his roles with layers of specificity that reveal deep commitment to authenticity. This is not a slapstick comedian — this is a dramaturgical engineer in disguise.

Off-screen, his businesses and interviews are marked by a similar degree of precision. He is known to be exacting in how he presents his products, brands, and beliefs — a reflection of someone who values coherence, credibility, and quality over trend-chasing.

In short, Aykroyd’s perfectionism is the silent engine behind his charm. It makes his comedy smarter, his performances richer, and his ideas more enduring. It’s not about flawlessness — it’s about craftsmanship.

Restless Focus and Neurodivergent Energy (Tension) in Dan Aykroyd

Dan Aykroyd scores a moderately high 4 out of 5 in tension, which measures internal pressure, urgency, and emotional restlessness. Though not outwardly volatile, Aykroyd demonstrates high inner activity, rapid ideation, and an energetic mental tempo that fuels both brilliance and internal strain.

He has spoken about experiencing obsessive thoughts and rigid routines in childhood — features consistent with the autism spectrum and indicative of a mind that often moves faster than external circumstances can match. Rather than letting this tension unravel him, Aykroyd uses it as creative fuel. His fast-paced dialogue, complex narratives, and high-energy performances are all products of this buzzing internal landscape.

This tension shows up as a sense of urgency. Aykroyd often dives deeply into topics, conversations, or projects with remarkable intensity — as if the ideas must be shared or constructed before they dissipate. This sense of internal drive helps explain the volume and variety of his output across comedy, film, entrepreneurship, and advocacy.

However, this same trait may contribute to withdrawal or retreat when overstimulation occurs. Aykroyd is known to choose peace and solitude over high-energy socializing, suggesting that his tension is manageable only when paired with boundaries and self-regulation strategies.

In sum, Dan Aykroyd’s tension isn’t a flaw — it’s a dynamic undercurrent that powers his work, insight, and presence. When channeled through structure and purpose, it becomes a powerful force for originality.

Dan Aykroyd’s 16PF personality profile reveals a richly layered individual — an intellectual performer, spiritual explorer, and structured visionary whose inner contradictions fuel both genius and humanity. His strongest traits — abstractedness, reasoning, liveliness, rule-consciousness, and openness to change — make him a rare blend of entertainer and philosopher, misfit and master craftsman.

Through self-reliance, perfectionism, and disciplined creativity, he has turned lifelong curiosities into cultural institutions. His neurodivergence is not a footnote in his story — it is the engine of his originality. Aykroyd teaches us that comedy can be intellectual, that order can contain chaos, and that authenticity can evolve without ever being compromised.

Curious to know how your personality aligns with Dan Aykroyd’s? Take the Cattell 16 Personality Factors (16PF) test and discover the traits that drive your own unique way of thinking, working, and connecting with the world. Your genius, like Aykroyd’s, might just live where logic meets imagination.