Some people have problems with self-assertiveness. That can have negative impact on their lives. This study will test a constructive self-assertiveness intervention program delivered online. In addition, the relative effect of guidance during the intervention will be investigated.~In a randomized controlled trial three groups will be compared:~constructive self-assertiveness with guidance~constructive self-assertiveness without guidance~Waitlist control~The treatment (and wait) will be 10 weeks.
Some people have problems with self-assertiveness. That can have negative impact on their lives. This study will test a constructive self-assertiveness intervention program delivered online. In addition, the relative effect of guidance during the intervention will be investigated.~In a randomized controlled trial three groups will be compared:~constructive self-assertiveness with guidance~constructive self-assertiveness without guidance~Waitlist control