Personality tests use the Barnum effect, where vague flattery makes generic descriptions feel specific

Why the Myers-Briggs test is pure entertainment

The world's most popular personality test isn't used by academic psychologists—but hundreds of companies and thousands of colleges use it to place workers and students. Here's why it's so popular and likely overused.

Fruit fly experiments show personality emerges, in part, from genetic factors

A 2025 study revealed that fruit flies exhibit unique behavioral preferences, akin to personalities, which could be artificially selected for when breeding to modify behavioral variability. This variability can be adaptive in unpredictable environments.

Polygenic scores aim to predict traits based on the contributions of many genes

These novel tests for multifactorial conditions evaluate the probability of traits like elevated blood pressure, diabetes, or high cholesterol based on what researchers currently know about different gene variants and their links to various traits. The tests are predictive, not definitive, partly because environmental factors influence the expression of genes. What's more, knowledge about cumulative effects from individual genes continues to evolve. The American Society for Reproductive Medicine states that these tests are too unreliable and nascent for clinical use.

Jungian archetypes can reveal personality traits

Swiss psychologist Carl Jung argued that we’re drawn to familiar character types—such as heroes, caregivers, or rebels—because they reflect universal archetypes embedded in the human subconscious. He believed these patterns shape behavior, motivation, and personal growth.

The average person can only detect someone is lying 54% of the time

Scientific research shows that avoiding eye contact or fidgeting—behaviors typically associated with deception—do not reliably communicate dishonesty. Polygraph tests are considered "junk science," with the best means of detection relying on evidence and contradictions.

What pupils can reveal about a person’s thoughts and feelings

Eyes have long been said to be the window to the soul. In this article, a psychologist and pupillometrist explores research demonstrating pupils as a window into the mind. Pupils tell us how intensely someone is exerting mental effort, or even reveal what a person is imagining. Read this article for insight into the field of pupillometry and how it can offer insights into our psyches.

Why your dog’s DNA isn’t destiny

DNA tests tell people about their pet’s breed and attempt to predict things about its behavior and health. But for all that these tests might provide some interesting results, they need to be taken with caution. Here's a look at what we can and can't learn from our pets' DNA.

Psychology research shows that conspiracy theorists tend to have a desire to be unique

While conspiracy theorists are often understood to have feelings of powerlessness in their lives, research suggests they may also be inclined to set themselves apart from the masses.

A prediction market was more accurate than most polls about the 2024 US presidential election

The idea that the median estimate of a group can be more accurate than individual expert estimates is called the "wisdom of the crowd," and dates back to the early 1900s. This theory can help explain the perceived value of prediction markets when it comes to polling and more.

Google Search trends reveal truths about society that traditional surveys miss

Studies of human behavior show that survey respondents may lie to present themselves more favorably. By studying anonymous search data, researchers have uncovered hidden racism, mental health struggles, and interest in taboo or stigmatized topics.

A Harvard professor argues that impostor syndrome can be a good sign

Specifically, Arthur C. Brooks has argued that self-doubt is usually evidence of healthy humility—not incompetence—and a clear contrast to the overconfidence of people who actually are impostors in their careers.

Meet Clever Hans, the 1900s horse that was believed to be able to solve math equations and read German

When Clever Hans was prompted with math questions, he responded by tapping his hoof to indicate his answers. Even a panel of experts found no indication of trickery in the horse's demonstrations. However, psychology student Oskar Pfungst found that Hans stopped tapping once a subtle cue on his owner's face told him to stop. The cues were so subtle that Wilhelm von Osten didn't even know he was giving them.

NFL Draft decisions are shaped by brain science, data, and office culture

Carnegie Mellon researchers say Draft-room choices are influenced by the "jackpot effect"—where higher stakes can impair performance—as well as by groupthink, the limits of data, and whether scouts feel safe speaking up.

Political typology quiz

Where do you fit in the political typology? Take this quiz to find out which political typology best matches your views. Sixteen questions serve to filter political views across nine typology groups. These groups include: Progressive Left;...

Who provides therapy is more important than what method they practice

What makes therapy work well is the connection that patients feel with their therapist, and the trust in that relationship. Some research suggests that while the therapeutic model—say cognitive behavior therapy or psychodynamic therapy—accounts for roughly 15% of outcomes, the therapeutic relationship with the therapist accounts for more than 30%.

Fear has a specific 'smell'—at least to machines

This excerpt from a Mythbusters episode takes on the smell-of-fear question, comparing the sweat composition of individuals exposed to snakes, rats, and scorpions with that of people exercising. Molecularly, the sweats are different to a gas chromatography machine, but to most noses would be indistinguishable.

Learn how the algorithms behind Tinger, Bumble, Hinge, and other dating apps work

Formerly based on the Elo rating system, which ranks chess players, the Tinder algorithm is built on user data, with more time spent on the app providing more data on user preferences from which to customize potential matches. OkCupid's match percentage algorithm relies on overlaps in users' search preferences and responses to a subset of over 4,000 questions.

Private schools don’t inherently boost student performance

High test scores in private schools often reflect affluent, selective student bodies—not superior instruction. Studies show that private school advantages stem largely from socioeconomic factors and admission policies, not institutional quality.

Clever Hans was a 1900s horse that was believed to be able to solve math equations, tell time, and read and comprehend German, until a psychology student discovered how he got his answers.

The features that make our voices unique

Human voices are about as unique as fingerprints: similar instruments but with endless variations. We each produce sound in the same physiological way, but when we talk we’re dropping clues about who we are, what we do, and where we’re from.

See the 16-question Greyson questionnaire on near-death experiences

The Greyson Scale, developed in the early 1980s, provides a questionnaire for people reporting near-death experiences that allows researchers some ability to quantify and track the phenomenon. See the questions and how they're scored here.

'Twenty-One' producers presented fabricated narratives as reality

Producers of “Twenty-One,” which featured two contestants competing from separate isolation booths, knew the quiz show format could use storytelling in the same way that any fictional program could. They found a perfect narrative in the matchup between Charles Van Doren, an all-American Columbia University instructor, and Herb Stempel, an arrogant Queens native. Stempel intentionally lost the game, pretending not to know the answer to a question about his favorite movie, “Marty.”

A list of five scientific theories that were accepted and later disproved

Humoral theory held that everyone's personality derived from different combinations of four bodily fluids: blood, phlegm, yellow bile, and black bile. The phlogiston theory stated that all combustible materials possessed a fire element—phlogiston—that was released and absorbed by the air during burning. When the air became saturated with phlogiston, the fire would go out.

Find 36 hidden messages in these household name company logos

Brand logos are designed to represent a business's core values and products in a unique, differentiating way. We experience this branding mechanism regularly, and hundreds of businesses are recognizable to us via only this one symbol, even when...

Nostalgia is a psychological coping mechanism created from bias

Memories are naturally reconstructed during recall, and research has shown a fading effect bias that causes negative ones to fade more quickly, helping us heal. This creates a natural longing for the past, particularly when faced with loneliness, boredom, or challenging moments in the present.

Gay Talese's 1966 Frank Sinatra profile was written without an interview with Sinatra

After numerous rejections from Sinatra, Esquire, and writer Gay Talese continued to pursue the profile, gathering information from observing Sinatra and interviewing friends and fans of his. Readers (and future writers) admired the way Talese captured the many layers of Sinatra’s personality from his generosity to his short temper.

In recent years a child anxiety expert has created and tested a novel phobia and anxiety treatment approach for children, focused on changing how parents respond to the fears.

Chaos theory—informally known as the butterfly effect—is the reason why weather forecasts are presented with probabilities rather than certainties.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

Browse a detailed visual analysis of over 200,000 similes—comparisons that often use 'like' or 'as'—from popular fiction to see how frequently writers the same idiomatic expressions.

When you complete a CAPTCHA on a website to prove you are human, you may be unknowingly training algorithms for self-driving cars, whose systems require training data to help identify crosswalks, bicycles, and other outdoor objects.

Planeterrellas create artificial auroras that mimic the atmospheric displays of light by setting up an electric field between two metal balls in a jar filled with a small amount of air.

After 25 people used virtual reality headsets to practice flying with virtual wings—flapping their arms—their visual cortex responded to the wings almost as if they were real arms, treating them as body parts.

Some Pokémon have been named after real and fictional organisms, while some real-world species have been named after Pokémon, such as Chilicola charizard and Binburrum zapdos.

Warren Buffett's former professor Benjamin Graham is known as the 'father of value investing,' a strategy in which investors seek to buy stocks trading below their intrinsic worth.

Existentialist writer Jean-Paul Sartre coined the famous phrase 'Hell is—other people' in his play 'No Exit'

Mid-century modern graphic designers, known for their bright colors and bold lines in advertising, also found success with children's books.

'Saturday Night Fever,' the 1977 film that introduced disco to the mainstream, was based on a fabricated magazine story.

Search a massive database of over 4 decades of clues from the TV quiz show 'Jeopardy!'

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

When a Paris department store hesitated to sell Estée Lauder's perfume, she 'accidentally' broke a bottle, causing the smell to spread throughout the store and shoppers to start asking to buy the scent.

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

In 2025, four executives from large tech companies were given positions in the US Army Reserves—including Palantir Chief Technology Officer Shyam Sankar, which reinforced Palantir's ties with the US military and its role as a leading defense partner.

The Beatles' US label rejected the band's first two singles, 'Please Please Me' and 'From Me to You,' with one executive calling the band 'dead in the water.'

How Amazon operates a 'flywheel' business model, a self-reinforcing cycle that drives continuous growth

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

Studies suggest when you sleep is as important as how much you get, and syncing with your circadian rhythms may lead to less fatigue and improved long-term health outcomes

Sears sold DIY house kits starting at $600 in its famous catalog from 1908 through the 1940s, resulting in roughly 10,000 'Sears and Roebuck houses' being built.

The first steps to rebuilding your credit score include getting to know exactly what's on your credit report and figuring out how far you are from the '700 club,' or 'good score' range.