Everything you always wanted to know about Psychometrics.
Multidimensional Scaling (MDS) is a statistical technique used to visualize the relationships between objects based on their similarity or dissimilarity. Think of it as a way to map complex, high-dimensional data into a two- or three-dimensional space, making it easier to interpret patterns and relationships. At its core, MDS takes a set of objects—these…
If you’ve ever wondered how psychologists and researchers make sure their tests actually measure what they claim to, then you’ve already touched on the concept of validity. One type of validity that comes up a lot in research, especially in psychology and education, is concurrent validity. This might sound technical, but it’s actually pretty…
Cut-off scores are one of those hiring tools that sound simple at first—just set a minimum test score, and if candidates meet it, they move forward. If they don’t, they’re out. But in reality? It’s way more complex than that. For companies using pre-employment tests, cut-off scores can be an easy way to filter…
