Table II .

Components of habit reversal therapy used in the randomized controlled trials.

Study	Competing response training	Awareness training	Relaxation training	Function-based interventions
Wilhelm et al. 2003	✓	✓	✓	✓
Verdellen et al. 2004	✓	✓
Deckersbach et al. 2006	✓	✓	✓	✓
Piacentini et al. 2010	✓	✓	✓	✓
Wilhelm et al. 2012	✓	✓	✓	✓