Adaptation and validation of a critical thinking scale to measure the 3D critical thinking ability of EFL readers

Abstract Thinking has always been an integral part of human life, and it can be said that whenever humanity has been thinking, it has been practicing a kind of criticizing the issues around. This is the concept of critical thinking that enhances the ability of individuals to identify problems and find solutions. Most previous research has focused on only one aspect of critical thinking that is critical thinking skills, while two other dimensions of criticality and critical pedagogy should have also been included. In order to assure of the validity of the instrument designed by Mohammadi et al. (Characterization and Development of Critically-thinker EFL Readers’ Reading Ability: Asynchronous Webbased Collaborative vs. Question-Answer-Relationship Instructional Approach, under review), it was first adapted and then SEM modeling was used. Examination of the results of factor analysis and modeling of SEM showed that the model satisfied the fit indices ( χ 2 /df, CFI, TLI, RMSEA), and all the factor loads are greater than 0.4 which represent that the items are defined properly. This research suggested a SEM modeling of critical thinking skills, composed of six factors measured by twenty-two indices. The results of the PLS-SEM CFA represented that it is a valid structural model to measure a critical thinking of EFL readers at three levels.