Types of impact assessment include Routine Outcome Monitoring (ROM) and tracking. In ROM, questionnaires are used regularly to measure the severity of a complaint and thus to monitor the impact of the treatment. E-mental health plays an important role in the implementation of ROM. The same questionnaire is conducted at the beginning, during and at the end of the treatment. By comparing the severity of a complaint at various measuring moments, it is possible to gain a clear picture of the treatment result. Difference scores are calculated and visualized graphically so that they are easier to interpret. A healthcare provider can use interim results to make adjustments to the treatment plan. Tracking works in a similar way. A short questionnaire is sent to the client after each treatment session. This is then used to assess the client’s experience of the treatment and the treatment relationship, for example.
E-mental health can also be used to measure client satisfaction. At the end of the treatment, clients are asked to complete a satisfaction questionnaire. The answers of all clients as a whole and/or certain groups of clients, over a certain period of time, provide an insight into the satisfaction levels of the client population in question. The main objective of impact assessment is to improve healthcare provision, but it is also often used to justify actions to external parties.