D.H.G. Hulsmans (Daan)

Problematic behaviors - such as alcohol or drug use, aggression, or self-injury - occur relatively frequently in some youth with a mild intellectual disability. In this PhD project, daily diary sampling via a mobile phone application is used to assess behavioral patterns of these at-risk youth. Studies are conducted to determine the method’s feasibility for the target group, to explore behavioral dynamics and its complex interactions with affect and context at the individual and group level. An existing personality-tailored prevention programme for substance use is then further developed by integrating it with daily diary sampling. Lastly, mixed-method research assesses programme effectiveness and idiosyncratic change mechanisms.