In contrast to longitudinal research, which collects data on the same subjects over time at various phases of aging and development, cross-sectional research compares groups of people of one age with a similar group of people of a different age.
Development is the process of growth, the acquisition of new knowledge, or an occasion. The transformation of a caterpillar into a butterfly is a good illustration of development. A development would be new information regarding a local robbery. A neighborhood of condos designed for senior citizens is an example of development.
Although cross-sectional research is the most practical method for examining developmental change over time, it is negatively impacted by the impact of shifting time periods on a particular age group. The main issue with longitudinal research is the constantly shifting historical background.
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