The Pocket Universal Methods of Design, Revised and Expanded

115	Triangulation

The convergence of multiple methods on the same research question to corroborate evidence from several different angles

• Triangulation ensures accuracy of information by combining sources and mitigating the weaknesses of any single method or source.
• The most common occurrence of triangulation is to combine behavioral observation methods with self-report methods such as questionnaires or interviews.
• Self-reported behaviors or attitudes aligned with social norms or research expectations may be contradicted by actual behaviors observed.
• Triangulation may compare physiological data such as heart rate or pupil dilation with self-reported information or observations of visible behaviors.
• Anecdotal information collected through ...