Five Cautions for Crowdsourcing

Five Cautions for Crowdsourcing

There is a small academic niche in market research that relies heavily on extremely cheap crowdsourcing for data. But before getting up in arms about the reliability and validity of such data, you should know this: They used to rely heavily on students enrolled in their college classes for data. Remember having to work six…

Data Geniuses Who Predict the Past

Data Geniuses Who Predict the Past

If there is one thing I hope you remember from your college statistics class, it’s this: Correlation does not imply causation. This is especially important to remember in our world of big data. Any large dataset will have hundreds of thousands of correlations, but most of those correlations will reflect purely random occurrences that mean…