Quadrangulation was developed as a novel method for the interpretation phase of an integral research project. The method follows the principles of Integral Methodological Pluralism in three steps. The first step views the results from as many of the 8 Zones as are included in the study. Results are then viewed at different levels of complexity by systematically integrating data sets across the four quadrants using six perspectives. Each perspective integrates two quadrants. The impact of the results is then interpreted at increasing ontological levels. This method enables the researcher to systematically develop meta-inferences and integrate results enacted from multiple methodological perspectives. It is a way to interpret and integrate truth claims from the subjective, objective, intersubjective, and interobjective dimensions. The first implementation of quadrangulation was enacted in a PhD thesis exploring linguistic data using an Integral Research design.