Triangulation is a credible and useful method of conducting research which can result in an increase in both quality and quantity of data gathered. The five documented types of triangulation (data, investigator, theoretical, methodological, unit of analysis) do not completely answer all the needs of nurse researchers, particularly in the field of qualitative research. Using more than one method of data collection from within the same research tradition (within-method triangulation) is an accepted and effective technique. Extending the concept of triangulation to include the development of research tools leads to the proposal that the conscious use of two or three types of communication within each qualitative research instrument would improve its effectiveness over a tool which used only one type. This application of 'triangulation of communication skills' is considered within each of the major qualitative research tools, and the benefits outlined. The implications for nursing research and nurse researchers of consciously using non-verbal cues to supplement verbal information are described. It is suggested that using triangulation of communication skills in this way may improve the validity of data obtained and, if clearly documented, increase the credibility of the findings. In particular, when conducting qualitative interviews, the expert use of triangulation of communication skills will enhance the quality and quantity of data gathered. To this end, novice researchers need education and practice in using communication skills to best effect, in order to ensure the validity and completeness of their findings.