Oddly Wired
← all facts
cognition

Your decision-making changes when you are distracted by numbers.

In a 1999 study by Shiv and Fedorikhin, participants holding a 7-digit number (high cognitive load) chose chocolate cake 63% of the time, compared to 41% for those holding a 2-digit number.

The increase in choice frequency is approximately 54% relative to the low-load condition, rather than exactly 50%.

When your brain is busy, your impulses take control.

Where this comes from

Study
Shiv and Fedorikhin, 1999, Journal of Consumer Research
What the check found
The study found a 22 percentage point difference between the two groups. Expressing this as '50% more' is a rough relative approximation rather than a direct finding.
Confidence
Solid, with limits

Related

One of these every day, and every one names the study it came from. When a finding is contested, it says so.