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...
By generating a large number of electrons, the electron multiplier amplifies the signal that was initially sent to the detector. This is important, since often times the signals received are fairly weak. The GCMS uses 2 electron multipliers-one in high-sensitivity mode and another in low-sensitivity mode.