In the course Introduction to Self-Determination Theory is claimed that:

• a basic psychological need is a need that, if satisfied, leads to greater well-being.
• SDT claims the existence of three basic psychological needs based on various researches. Therefore the satisfaction of the three basic psychological needs contributes to our well-being and therefore to happiness.

Related Questions:

• What contributes to well-being?

Related Topics:

References

• Introduction to Self-Determination Theory | University of Rochester by Coursera