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...
[edit] Case (Tangency). Case refers to the map projectionâs interaction with the portion of the earthâs surface depicted on the map. Each map has a point or line of tangency, along which there is minimal distortion.In the tangent case, the line (or point) of tangency contacts the globe at one line (or point).edit] Case (Tangency). Case refers to the map projectionâs interaction with the portion of the earthâs surface depicted on the map. Each map has a point or line of tangency, along which there is minimal distortion.In the tangent case, the line (or point) of tangency contacts the globe at one line (or point).