According to psychologist Barbara L. Fredrickson, it takes three positive emotions to outweigh every negative one. Based on this, the Google design team set up two jars of marble to examine the costs and benefits. For every positive emotion that the design makes, they put a marble in the good emotion jar. However, if the design causes a negative emotion, they’ll put 3 marbles in the bad emotion jar. Their goal is to get an empty negative jar and a full positive jar.

Google Android’s 3 UX Design Principles and 2 Jars of Marbles” via Keira Bui on Medium

Very cool of Google to share these. I like the approach of thinking about positive/negative experiences as it can be a simple but powerful way to create emotionally engaging experiences. This is definitely true for apps like Contactive as we focus on improving productivity for our users.

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