Your Brain Performance Index (BPI) is how you measure and track your cognitive performance, and compare your ability in one area to another. All active Lumosity users have a BPI. You can check yours in the My History section, or if you’re not already a member you can sign-up and get your BPI by playing the brain training games.
An increase in BPI indicates improvement. Remember that BPI is a way to track your own personal progress – it is not intended as a way to compare yourself to other people.
How is BPI calculated?
The BPI scales are based on an analysis and ranking of over 7,200,000 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.
How is overall BPI calculated?
Your Overall BPI is your average BPI across each of the four cognitive areas: attention, memory, processing speed and cognitive control. 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.
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