Randomized experiments (or randomized controlled trials, RCT) are a powerful tool for testing causal relationships. Their main principle is random assignment, where subjects or items are assigned randomly to one of the experimental conditions. A classic example is a clinical trial with one or more treatment groups and a no-treatment (control) group, where individuals are assigned at random to one of these groups. Story 1: (Internet) experiments in industry Internet experiments have now become a major activity in giant companies such as Amazon, Google, and Microsoft, in smaller web-based companies, and among academic researchers in management and the social sciences. … Continue reading Key challenges in online experiments: where are the statisticians?
It’s one thing to collect and analyze behavioral big data (BBD) and another to understand what it means to be the subject of that data. To really understand. Yes, we’re all aware that our social network accounts and IoT devices share our private information with large and small companies and other organizations. And although we complain about our privacy, we are forgiving about sharing it, most likely because we really appreciate the benefits. So, I decided to check out my data sharing in a way that I cannot ignore: I started wearing a fitness band. I bought one of the … Continue reading Experimenting with quantified self: two months hooked up to a fitness band