In this article a research has been described funded by the province Fryslân. The aim of this research project is bipartite. First, to determine the reliability and the validity of the instrument and, secondly, to inquire the involved residents living in old people's homes after the valuation of the use of the Frisian language in the care. The research is conducted among 73 residents living in nine old people's homes in the province Fryslân. On two moments in time residents of the old people's homes are asked to fill in a questionnaire with regard to their own care (in)dependency and once with regard to the use of the Frisian language in the care. Reliability analysis shows with regard to internal consistency high Cronbach's alpha values. Test-retest reliability (Cohen's kappa and Spearman Correlation) reveals fair to moderate values. Factor analysis (principal components analysis) results in a one-factor solution. According to the residents, the 'Soarchmjitter' gives a good picture of their care dependency and its questions and answers join their needs. It can be concluded that the 'Soarchmjitter' is a useful instrument to communicate in the own spoken language of the resident and to come in this way to an agreement with nurses about their care demands.