Factors Influencing Selective Mutism

Four groups participate in the psychometric questionnaire study. A group of mute children and their mothers (EG:A), as well as a normal, healthy control group (KG:A) with roughly the same age and sex characteristics fill out one-time questionnaires about current daily life experiences. In addition, another group of formerly mute adults (EG:B) as well as a comparable age/sex normal control group will be retrospectively questioned using the same specifically tailored questionnaire.