SDDS model
The SDDS model ( Scientific Discovery as Dual Search ) describes the components of the scientific knowledge process from a cognitive psychological point of view. It was developed by David Klahr.
Surname
The SDDS model follows the tradition of problem solving theory. It implies the assumption that the path to gaining scientific knowledge requires a search in two problem areas. This 'dual' search gives the model its name. The problem spaces are the 'hypothesis space ' on the one hand, and the ' experiment space ' on the other hand.
Main components of the SDDS model
Within the scientific knowledge process through experimentation , three main components control the entire process from the initial hypotheses to the experimental verification to the decision whether the collected data are sufficient to consider the hypothesis to be confirmed. These three main components are:
- Search hypothesis space
- The testing of hypotheses (test hypothesis) and
- The analysis of evidence (evaluate evidence).
Applications of the SDDS model
The SDDS model has been used and provided knowledge in various areas. It was primarily the result of a series of tests with a programmable robot called 'Big-Trak' at MIT . This resulted in possible applications in different areas of experimenting with different programming patterns. In this way, the researchers were able to find categories for experiment types based on their different approaches. In addition to the technical area, it was also applied to biological contexts and is particularly important at the level of didactic research. Hammann has developed a competence development model for experimentation based on the SDDS model. Competency development models are intended to enable the cumulative promotion of competencies in the sense of a spiral curriculum , in that the defined competency levels can be taken up and systematically developed in the classroom. In addition, these models provide starting points for the operationalization of competencies, which is required within the framework of standardized performance measurement in the natural sciences. In this case, Hammann breaks down the skills in the area of experimentation according to the three components of the SDDS model and defines skill levels for the lower secondary level .
Individual evidence
- ↑ Marcus Hammann: Competence Development Models . In: Mathematics and science lessons . 57/4, 2004, pp. 196-203.
literature
- David Klahr: Exploring Science: The Cognition and Development of Discovery Processes . Massachusetts, MIT Press 2000, ISBN 978-0262611763 .
- Marcus Hammann: The Scientific Discovery as Dual Search Model . In: Dirk Krüger / Helmut Vogt: Theories in Biology Didactic Research . Springer Verlag, Berlin 2007, 187–196, ISBN 978-3-540-68165-6 .