Piaget’s methods that included the many clinical interviews and observations that had partial interpretations than compared to the other methods because he conducted these observations alone and collected the data based on his own interpretations of the events that took place. Many believed that the data would have been more reliable if Piaget had to conduct these observations with some other researcher and then finally compared the results later to check whether or not they are similar to each other or have inter rater reliability. Also many studies showed that Piaget also did not believe in the capabilities of the children because his tests were usually very confusing and very difficult to understand (Forbes, S. A. …show more content…
His studies were also carries out with a very small number of participants and few of them were his own children (Wubbena, Zane (2013). This sample became biased and the results could not be generalized to the children who came from different countries and cultures. Another issue was that for Piaget language was a secondary issue to action. He strongly believed that the process of thought overpowered language but however many other psychologists argued that language development and thought process are very similar to each other and the method for reasoning was directly related to the ability to communicate well with others than the interaction with the