This study is way to small and limited to show much of anything... but many of the proponents and historical engineering studies that advocate static typing don't claim that it reduces "development time" so much as reduce the times/costs throughout the entire life cycle of the product. In fact, the "development time" or in this case "prototype time" hasn't been all that terribly interesting.
What would be interesting is to take these same projects, and same team members and add some features a year later and see what that looks like and then take the same project and give it to a new team after 6 months and have them add some minor feature or fix a bug and measure that. Or double the performance of the project and measure what that costs, if it's possible. etc.. It's fun to argue and advocate for what you like though.
What would be interesting is to take these same projects, and same team members and add some features a year later and see what that looks like and then take the same project and give it to a new team after 6 months and have them add some minor feature or fix a bug and measure that. Or double the performance of the project and measure what that costs, if it's possible. etc.. It's fun to argue and advocate for what you like though.