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The theme in this research is relevance to the topic hoax and child development. The research aims to improve children's cognitive ability. Subject used for effectiveness test of 27 students of Aisyiyah I Kadipiro Surakarta. The data were collected through observation. The data analysis used the qualitative analysis and non parametric analysis Wilcoxon test at the significance level of 0.05. The result of this research are as follows. Flashcard are feasible to be used for increase children's cognitive abilities 5-6 year old students. This can be seen from the result of Wilcoxon test which indicated that p < 0.005 i.e 0.000, meaning that the flashcard was effective to improve cognitive ability significantly.
Asmodilasti et al. (Mon,) studied this question.