Comparing Different Readability Formulas on the Examples of Science-Technology and Social Science Textbooks

The aim of this article is to compare various formulas to determine the readability levels of texts in 4th and 5th grade Social Science and Science-Technology text books. For this purpose, “Flesch, FOG, Gunning, Sšnmez and Ateşman” readability formulas were used. The study sample comprised of randomly selected 4 texts which were used in 4th and 5th grade Social Science and Science-Technology textbooks in the 2009-2010 academic year at Ankara. As a result, when the readability levels of texts in the textbooks are examined, it has been revealed that the results of formulas' are not consistent with each other.