I do recall thinking that Kahneman moved too quickly over his own comment in that book that over 50 percent of studies in psychology had been found to be under

I do recall thinking that Kahneman moved too quickly over his own comment in that book that over 50 percent of studies in psychology had been found to be under powered from a statistical standpoint. He didn't then follow with 'so I made sure that every study mentioned in this book had sufficient power'... Which made me worried about his conclusions. Given your opinion was voiced so strongly, I assume you've looked at this in detail? If so could you please expand on what evidence or research supports your statement?