<P> Microgenetic design (a.k.a. microgenetic method) is a scientific method in which the same setting is studied repeatedly in order to observe change in detail . In contrast to cross-sectional and longitudinal designs, which provide broad outlines of the process of change, microgenetic designs provide an in - depth analysis of the behavior of the system while it is changing . Although often associated with developmental psychology, the method has been applied in adult settings as well, and the method is applicable to any system--human or otherwise--whose behavior changes over time, and where it may be useful or important to analyze the details of these changes . The term "microgenetic" appears to have originated with Heinz Werner, who described a "genetic method" in the early part of the 20th century, and has been employed by many prominent psychologists since that time . (It is unclear when and where the "micro" neo-prefix - ism was added .) </P>

Which of the following is an example of the microgenetic design