Repustate’s new metric
One of the newest and most popular features of Repustate’s Social Media Monitoring platform has been the addition of a metric we call the Repustate Promoter Score, or RPS for short. The RPS provides a simple score, from 0 to 10, that indicates the overall sentiment people have about a particular topic in question. This could be a person, a brand, a product, anything.
The RPS is calculated as follows: Take the total number of positive mentions, the total number of negative mentions, compute the Wilson Confidence interval using those two numbers, and then multiple by 10 to get a score between 0 and 10. That’s a mouth full, let’s dig a bit deeper.
How it works
Total number of positive & negative mentions is easy enough to understand, but what’s this about a Wilson Confidence interval? Well, it’s a math formula which tries to determine how confident you are about a particular outcome given the data. To put this in social terms, let’s say we have 1 tweet about the Apple iPhone and that tweet is positive. How confident are we that everyone is positive about the iPhone? Well, not too confident, because we only have 1 piece of data. But let’s say we have 1000 tweets, and 950 are positive. Now our confidence level rises, and that’s the thinking behind using the Wilson Confidence internal.
Here are some examples of Repustate Promoter Scores given a number of positive and negative mentions:
Positive: 1, Negative: 0, RPS: 2
Positive: 10, Negative: 0, RPS: 7
Positive: 10, Negative: 10, RPS: 3
Positive: 0, Negative: 100, RPS: 0
Positive: 100, Negative: 5, RPS: 9
When you create a new data source, Repustate calculates the RPS on an ongoing basis so you can see how the RPS fluctuates over time in your dashboard.