What is BPI?
Brain Performance Index (BPI) is a measure of your performance in a given cognitive function. You can use BPI to track your performance, and compare your ability in one cognitive area to another.
An increase in BPI indicates improvement. An increase of more than 200 points represents a substantial improvement of about 1 standard deviation.
All active Lumosity users have a BPI. You can check yours in the Brain Profile section, or if you’re not already a member you can sign-up and get your BPI by playing the brain training games.
How is BPI calculated?
The BPI scales are based on an analysis and ranking of over 13,000,000 real game results. We used these game results to create a distribution of scores for each activity so we know how an individual score stacks up to all others. We then evaluate your game scores and use a proprietary algorithm to derive your BPI. Each time you play, we update your BPI to accurately reflect your current brain performance.
Can I see how my BPI compares to other people my age?
Yes. First check that your correct birthdate is set in Your Account. After setting your birthday, you can use the “How do you compare?” section on Your Brain Profile to see your percentile rank among other users your age.
How is overall BPI calculated?
Your Overall BPI is your average BPI across each of the five cognitive areas: attention, memory, speed, flexibility and problem solving. This number provides a concise measure of your overall brain performance. If you are weak in one area, it will bring down your overall score, so it’s a good idea to focus on the games where you scores are lowest.
Can I compare my BPI in one area to another?
Yes. The BPI converts scores in very different activities to the same scale based on average scores across all users. For example, a BPI of 400 in Birdwatching is equivalent to a BPI of 400 in Word Bubbles.
