Test knowledge of triangulation in interdisciplinary mixed-methods research, including definitions, types (methodological, data, investigator, theoretical), purposes (validity, complementarity, completeness, corroboration), design considerations, practical examples across disciplines, and common limitations and threats (incongruent findings, epistemological conflicts, resource constraints, integration challenges). Assess ability to distinguish when triangulation is appropriate, choose suitable triangulation strategies, and critically evaluate its strengths and limits in research planning and interpretation.