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Cross-sectional designs. The majority of developmental studies use cross-sectional designs because they are less time-consuming and less expensive than other developmental designs. Cross-sectional research designs are used to examine behavior in participants of different ages who are tested at the same point in time.
While research studies can vary, these are the basic steps that psychologists and scientists use when investigating human behavior.
These systematic methods include scientific observation, surveys, interviews, standardized tests, case studies, and psychophysiological measures. Scientific observation involves the unobtrusive watching and systematic recording of a participant’s behavior ( Jackson, 2016. Research methods (5th ed.).
role of gain and loss in development is the relation between the two processes. We believe that life-span theorists have tended to assume that during early life gains cause losses, and that during late life losses cause gains.
Most frequently used methods include:
Data may be grouped into four main types based on methods for collection: observational, experimental, simulation, and derived. The type of research data you collect may affect the way you manage that data.