close
Advertisement

Can You Pass the World’s Shortest IQ Test? Less Than 20 Percent of People Can

These questions even stumped students at Yale and Harvard.

Can You Pass the World’s Shortest IQ Test? Less Than 20 Percent of People Can
iStock

So, you might have a dark sense of humor or failed your driver’s test—all signs of intelligence, according to science. But how smart are you, really? The Cognitive Reflection Test (CRT), also known as the world’s shortest IQ test, claims it only takes three questions to tell if you’re a genius.

Developed in 2005 by Princeton psychologist Shane Frederick, the quiz assesses your ability to process information slowly and rationally, rather than jumping to quick conclusions. “In order to succeed in the CRT, you must spend time reflecting on your answer and question your intuitive response,” IFL Science explains.

Before you get started, we’ll give you a quick hint: the questions might not be as easy as they first seem. A 2005 study found that students attending some of the nation’s most prestigious universities (including Harvard and Yale) failed to get all three of these questions correct; only 17 percent received a perfect score.

Think you have what it takes?

Advertisement
1. Bat and ball conundrum
1. Bat and ball conundrum
iStock
A bat and a ball cost $1.10 in total. The bat costs $1 more than the ball. How much does the ball cost?


Advertisement
10 secret messages hidden in world famous paintings

10 secret messages hidden in world famous paintings

Turns out Michelangelo, da Vinci, Van Gogh and company were even more brilliant than we’ve given them credit for.
Cancer June 22 – July 22

Horoscopes June 2019

Find out what the stars have in store for you this month, thanks to Reader’s Digest’s expert astrologist Janice Jones.
12 foods you didn’t know could kill your dog
Why we procrastinate and how to stop

Why we procrastinate and how to stop

These simple tools will stop you delaying what can be done today.
13 rude things you need to stop doing at the supermarket

13 rude things you need to stop doing at the supermarket

Grocery shopping is something we all have to do, seemingly all at the same time. Here’s how to make the experience better for everyone involved.

Advertisement