... abstract, flexible mental schemata to understand and act on reality 11 years and beyond As you can see the fourth stage of the cognitive development theory is what Piaget's was studying when he designed the pendulum study. Piaget has broken down stage four, Formal Operations, into The Four Stages of Formal Reasoning. I would be inclined to say that the first stage ... of the parents of the early adolescents. In addition, I made an effort to ensure that the environment for conducting the study remained consistent with the participants. When conducting the experiment I sat across from the...

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