Survey research can be classified into two categories, according to the time period being studied. Cross-sectional surveys take measurements at a single point in time. Longitudinal surveys take measurements at multiple points in time. These two types of surveys are useful for different purposes, but can be misused if not properly understood. Consider the following example.Read More Can You Measure a Longitudinal Variable in a Cross-Sectional Survey?
Many companies seek to capitalize on profitable brands and exploit their brand equity by introducing brand extensions, which are new products introduced under an existing brand name Read More Three Questions to Ask Before Introducing a Brand Extension