Various experiences related to research work, including the less successful ones, are all part of the research process. Awareness of their existence allows to draw conclusions from one’s mistakes and a more responsibly design of a research. This article aims to understand the traps a researcher, exploring intellectual disability, may fall into. As a result of search and reflection, three kinds of traps can be listed: resistance — submission, norm — pathology, correctness — negligence.

The persons with intellectual disability have serious difficulties in language skills and consequently in the process of learning. The problems can be caused by Central Auditory Processing Disorders. In this paper we present research results on effectiveness of the Warnke method as a supporting tool in the development of language skills and in the process of education of children with such intellectual disabilities of mild degree.