A comparison of the reliability of the Solo- and revised Bloom's Taxonomy-based classifications in the analysis of the cognitive levels of assessment questions

Abstract

This study aims to compare the reliability of SOLO and revised Bloom's taxonomy-based (RBT) classifications in the determination of the cognitive levels of the assessment questions. The data were obtained by three experts' examination of the assessment questions in the Seventh Grade Social Studies Textbook published by the Ministry of National Education and Eight Grade Science and Technology Textbook published by Yıldırım Publishing in 2015. The collected data were analyzed in a crossed design whereby the assessment questions were the object of measurement and the experts were the facet on the basis of the generalizability theory. It was found that the variance percentage of the main effect of the assessment question was found to be higher in the SOLO-based classifications. The variance component related to the experts' main effect and the residual variance values were found to be higher in the RBT than in the SOLO taxonomy. In conclusion, compared to the RBT, the SOLO-based classifications were found to have higher G and Phi coefficients. These results indicate that SOLO taxonomy seems to be more reliable than RBT in the determination of the cognitive level of assessment questions.