The need for competence: towards a more precise definition
 
 				 				 				 				 				  				 				 				 				 				  Self-determination theory  ( SDT) posits that in addition to the need for autonomy  and relatedness , people also have a fundamental need for competence . In attempting to use this need for competence in educational  software, researchers have found its definition to be confusing and  incomplete. Two recent papers address this by clarifying and formalizing  the definition.