Longest-running dramatic series of any genre. Longest-running daytime drama. *While its television debut was on June 30, 1952, The Guiding Light's first incarnation was as a radio show, which premiered on January 25, 1937. 55 years.
The benefit of a cross-sectional study design is that it allows researchers to compare many different variables at the same time. We could, for example, look at age, gender, income and educational level in relation to walking and cholesterol levels, with little or no additional cost. longitudinal study, like a cross-sectional one, is observational. So, once again, researchers do not interfere with their subjects. However, in a longitudinal study, researchers conduct several observations of the same subjects over a period of time, sometimes lasting many years.
What is a 'Cross-Sectional Analysis' Cross-sectional analysis is a type of analysis that an investor, analyst or portfolio manager may conduct on a company in relation to that company's industry or industry peers. The analysis compares one company against the industry in which it operates, or directly against certain competitors within the same industry, in an attempt to assess performance and investment opportunities.