 The study found that intervention characteristics and persuasive technology elements play a role in predicting adherence to a web-based intervention. Interaction with a counselor, more frequent intended usage, more frequent updates and more extensive employment of dialogue support significantly predicted better adherence. Additionally, the differences in technology and interaction between healthcare areas did not predict adherence. This article was authored by Kelders, Sesquia M., Coke, Robin N., Osibard, Han Si, and others.