1. Everyone in the study was allowed to succeed in their goals, so a conclusion cannot be stated beyond "those that set high goals and have them met are more satisfied than those who set lower goals and have them met."
2. Correlation is not causation. Perhaps those who set higher goals were more satisfied in general already, or had some other reason to feel more satisfied about anything that might happen to them.
Comments
1. Everyone in the study was allowed to succeed in their goals, so a conclusion cannot be stated beyond "those that set high goals and have them met are more satisfied than those who set lower goals and have them met."
2. Correlation is not causation. Perhaps those who set higher goals were more satisfied in general already, or had some other reason to feel more satisfied about anything that might happen to them.