Value-added, Relative gain of knowledge, on-line educational testing

Nowadays, there are several ways of measuring so called value-added assessment of the school in the scope of the evaluation of the results of education in the school. In this article we will look at one of these principles and also at the influence of one of these parameters, in this case the education of parents, on the measurement. We pay attention to the differences of the value-added assessment of school on particular levels of education. The results show that the education of parents can be a significant factor on influencing the measurement of the value-added assessment and it is necessary to consider it in the models.