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How Triangulation Ensures Validity and Reliability in Social Science Research

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How triangulation Ensures Validity and Reliability in Social Science Research

1.0 Introduction

Triangulation has been defined as the use of more than one approach to the investigation of a research question in order to augment confidence in the findings (Bryman, 2004). For Yeasmin & Rahman, (2012) triangulation is a process of verification that increases validity by incorporating several viewpoints and methods. When applied in the social sciences, it refers to the combination of two or more theories, data sources, methods or investigators in one study of a single phenomenon to converge on a single construct, and can be employed in both quantitative (validation) and qualitative (inquiry) studies.

This paper provides a historical background and the development of triangulation as a concept and its application. The paper also presents an overview of various concepts linked to triangulation as applied in social research

Finally the paper discusses the benefits and challenges of triangulation offering some relevant examples that guide in understanding the concept.

2.0 Background of Triangulation

Originally triangulation was a method used to determine the location of a fixed point based on the laws of trigonometry. The laws state that if one side and two angles of a triangle are known, the other two sides and angle of that triangle can be calculated.

Triangulation though not defined was used in the early civilizations of the ancient Egypt and Greece. Going back to the early centuries, triangulation was commonly associated with maritime navigation, where sailors used it to track their position and course. It has continued to play a great role in surveying and civil engineering. It is the major concept behind the GPS technology where theoretically, the signals from three satellites could be used to fix the location; however, four are

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