Hi razvan-stanciu, you made a good point. I think the effects of praise might be sensitive to cultural context. For example, in many Asian cultures, praise is very rare, and even a comment that is half-praise is highly treasured and deeply motivating. Carol Dweck's study was conducted in the US, and I think in American culture, praise is often too extravagantly lavished on children - to the point the they become worthless or worse, have the opposite effect. The is especially the case when the praise is general (great job!) instead of specific (wow, I like how succinct your code is!).