triangulation - combining of 2 or more methods or researchers in order to come to a conclusion about the particular research. This is done to double check the results.
methodological pluralism - 2 or more methods, but they must be one quantitative, and one must be qualitative. This is done to eradicate the problems of one of the methods, by using the strengths of the other method.
mixed methods
strengths:
validity increased
reliability
weaknesses:
costly
time consuming
triangulation
strengths:
reduces research bias
enhances validity
weaknesses:
time consuming
results may be inconsisent or contradictory
methodological pluralism
strengths:
provides a thorough and accurate piece of research
weakness:
strengths of another method does not eradicate the problems of the other all the time.