What is diathesis-stress theory?

The term "diathesis" is used to refer to a genetic predisposition toward an abnormal or diseased The term "diathesis" is used to refer to a genetic predisposition toward an abnormal or diseased condition. According to the model, this predisposition, in combination with certain kinds of environmental stress, results in abnormal behaviorcondition. According to the model, this predisposition, in combination with certain kinds of environmental stress, results in abnormal behavior