Contingency management is a set of techniques that focus on changing specific behaviours. For example, in drug misuse, it involves offering incentives for positive behaviours such as abstinence or a reduction in illicit drug use, and participation in health-promoting interventions.
Dual diagnosis usually refers to mental illness combined with substance misuse. But it may also be used to describe a number of other conditions, including physical health problems. In the UK social care sector, the term is sometimes used for people who have both a learning disability and a mental illness.