Sentence:  Even though <WSD>triangulation</WSD> is used in quantitative paradigm for confirmation and generalization of a research, Barbour (1998) does not disregard the notion of <WSD>triangulation</WSD> in qualitative paradigm and she states the need to define <WSD>triangulation</WSD> from a qualitative research's perspective in each paradigm. For example, in using <WSD>triangulation</WSD> of several data sources in quantitative research, any exception may lead to a disconfirmation of the hypothesis where exceptions in qualitative research are dealt to modify the theories and are fruitful. 
Meaning of the word marked with <WSD> tags:  The use of three (or more) researchers to interview the same people or to evaluate the same evidence to reduce the impact of individual bias.