In the psychodynamic approach, how does the relationship differ from freud's perspective?

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society

In a study, people were asked to imagine simple occasions that made them happy and to remember events that made them feel proud about themselves. it was observed that the subjects developed an increasingly positive attitude. these changes are known to be healthy, leading to greater physical activity and reducing unhealthy habits. based on this excerpt, we can conclude that a positive attitude .

What was the greatest contribution of the “scientific method”?