Construct validity refers to validity of the ideas and concepts used in the research. Constructs are âconceptsâ and âideasâ. This particular validity is often problematic and not clear cut. There is a subjective (interpretive) element in it that makes it somewhat debatable.
The divergence of scale at the poles is a major weakness of the Mercator projection, rendering it unsuitable at high latitudes. Login or Sign Up to answer this question. data-config-site-section=chacha>. What is a Mercator projection A Mercator projection is a mathematical method of showing a map of the globe on a...
The first problem with both scale and resolution is that the world is neither flat, nor spherical. Any flat representation of the planet is therefore a compromise between accuracy and convenience. The Mercator projection is one of the traditional map projections and offers some very compelling advantages: