Longitudinal studies observe one or more sample groups over a long period to track changes and trends in behavior, societal development, and other variables. They are valuable to social sciences, particularly psychology and sociology. Longitudinal studies allow scientists to observe changes in people as they live in the real world, but may be less accurate […]
Longitudinal waves move parallel to the direction of motion and transmit energy through a medium. Non-electromagnetic waves include pressure and sound waves, while electromagnetic waves can transmit energy through a vacuum. P-waves are the fastest seismic waves and are recorded by seismometers. Sound waves require a medium to travel and travel faster in solid media. […]
