Experiment Lecture - VG 1 What is Experimentation...

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VG 1 What is Experimentation? Experimentation is OBSERVATION + INTERVENTION In experimentation the experimenter is even more active than an observer making an observation. The experimenter actively manipulates the apparatus e.g. adjusts dials, opens valves, calms animals, adds reagents, etc. VG 2 Experiments are ACTIVE, THEORY- LADEN and depend upon SKILLS and PRACTICES e.g. learning to do experiments in school science labs
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VG 3 Because experiments are active and take time to perform, experimenters build up their BELIEF in particular results. e.g. Millikan became COMMITTED to a particular value of the charge of the electron. VG 4 An EVIDENTIAL CONTEXT is the context in which an observation or experimental result takes on relevance. It may be another group of scientists trying to measure the same thing; it may be a theory that is being tested or a technological device which depends for its technical success on this result.
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