When is dissemination of an Internet-delivered intervention successful?

Turning Heads – Utilising Psychology

Before determining if an Internet-delivered intervention has been disseminated successfully, one should first determine when an intervention is successfully disseminated. This is not as straightforward as it may seem. Absolute figures may cause unrealistic optimism, since thousands of visitors are not uncommon for websites in general. Relative figures, on the other hand, may cause unrealistic pessimism, since they may be very low if one relates number of visitors to Internet penetration rates. To estimate the reach of a recruitment approach and the generalisability of results, it is important to report the target group, the number exposed to recruitment, the number who respond, the number eligible, and the number who actually participate (Graham, Bock, Cobb, Niaura, & Abrams, 2006). Furthermore, one should determine a final target in advance. There is, however, no

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