×

The 10 Coolest Psychology Experiments Done On Personality


The 10 Coolest Psychology Experiments Done On Personality


Exploring the Human Mind

Ever wondered what makes people tick? Well, psychologists have been poking around our brains for ages trying to figure out the answer to that precise question. Their experiments have not only produced fascinating data but have also served to showcase a level of human ingenuity and creativity that often leaves us with even more questions. Here's a roundup of the top ten coolest psychology experiments that show how weird humans can be—even if they're the ones conducting the experiment!

girl wearing pink headbandPâmela Lima on Unsplash

1. Piano Stairs

Imagine walking through a subway station and suddenly finding yourself on a staircase that plays music with every step! That's what Volkswagen did to encourage folks to ditch the escalator. It turns out that when you make things fun, people change their perspective, even if it's something you wouldn't normally prefer. Stair usage shot up by 66% with this experiment.

File:Polanco's staircase.jpgVictor.Aguirre-Lopez on Wikimedia

2. Carlsberg Social Experiment

Our nature is shaped in a way that we still "judge a book by its cover." Here's how Carlsberg proved it: At a packed cinema, the only seats left were next to a group of quite intimidating bikers. What did people do? Some "judged the bikers by their leather jackets." But the brave souls who dared to sit down were rewarded with free "Carlsberg" and cheers from the audience.

man sitting on black cruiser motorcycleOleg Yeltsov on Unsplash

3. Pygmalion Effect

In an elementary school, teachers were told that certain students were "intellectual bloomers," So the teachers encouraged them to perform. However, these students were randomly selected. But at the end of the year, the results were astonishing. Those students actually gained higher IQ scores compared to their peers. This is a classic example of how motivation changes us.

File:The Pygmalion Effect.jpgEkaterina Pankova on Wikimedia

Advertisement

4. IKEA Effect

Here we have the IKEA Effect: People were observed valuing those items they've assembled themselves way more than pre-made ones, even if the assembled ones were wobbly and poorly constructed. So, the study conveyed that humans feel more satisfied with the products they work on. After all, nothing says "I'm proud" like an uneven bookshelf.

screws on paperSemyon Borisov on Unsplash

5. Invisible Gorilla

Can you miss something obvious even if it's right in your face? Turns out, you can. In this study, half the participants watching a basketball video failed to notice a person in a gorilla suit walk through. It may seem like a silly experiment, but it showed selective attention can oftentimes blind us to the bizarre.

File:Mardi Gras Drinking Gorilla.jpgBridget Coila on Wikimedia

6. The "Strange Situation"

Different personalities can emerge even in the tiniest humans. The "Strange Situation" Experiment observed how infants reacted when left alone in a room with their mothers and then reunited. Some babies would throw epic tantrums while others seemed completely unfazed—like they were saying, "See ya, Mom! I've got toys to explore!"

Boko ShotsBoko Shots on Pexels

7. The “Robbers Cave” Study

In this classic study, Muzafer Sherif took a group of boys to a summer camp and split them into two rival teams. Competition led to fierce hostility, involving pranks and physical fights. However, when they were later forced to work together on shared goals, like fixing a broken water supply, cooperation emerged. Who knew our goals could affect our personalities to such extremes?

group of children pulling brown ropeAnna Samoylova on Unsplash

8. Dunning-Kruger Effect

Confidence doesn't always correlate with skill, and this study proved it. Participants took a quiz on grammar and then rated their performance. Those who scored the lowest were often the ones who rated their performance high. They were highly confident. On the other hand, people who scored higher were more modest about their knowledge and rated their performance lower.

File:Dunning–Kruger effect.jpgLittleT889 on Wikimedia

9. Blue Eyes/Brown Eyes

Jane Elliott's eye color experiment took prejudice to a whole new level. She told kids who had blue eyes that they were superior to those with brown eyes, leading to some exaggerated behaviors. Kids strutted around like they owned the place. This was a wild reminder of how silly biases can be when we put them under the microscope.

girl in white and pink shirtCristina Anne Costello on Unsplash

10. The “Good Samaritan”

This study looked at whether people would help someone in distress when they were in a hurry. Most people (even future pastors) rushed past those who were clearly in need. It was kind of sad—like a real-life version of "Don't be that guy." Results proved that we're so wrapped up in our lives that we often avoid helping others.

File:Domenico Fetti - Parable of the Good Samaritan - WGA07860.jpgDomenico Fetti on Wikimedia


KEEP ON READING

 Alt
When Was the Last Time You Called Your Mom?. It’s easy to spend time with our moms when we’re little.…
 Alt
April 15, 2025
Related By Blood But Not In Heart. As much as we all hope for loving parents who support us no…
 Alt
Is E-Therapy the Right Move For You? . You’ve undoubtedly seen e-therapy apps that offer virtual sessions with licensed professionals—but is…
 Alt
April 10, 2025
True or False?. How can you tell if someone is lying or not? While some might leave obvious signs, others…
 Alt
Reading Between the Lines. Body language is a great way to gauge how a person is feeling in any given…
 Alt
What to Do When Communication Breaks Down. Relationships don’t stand a chance without proper communication—but can you recognize poor habits…