New Scaling of Theory of Mind Tasks: Where Can the Intentional Aspect Be Scaled?

The purpose of the research is to develop a new theory of mind tasks, test its reliability and validity, and scale the intentional aspect of theory of mind. The study was designed as survey research, one of the quantitative research traditions. One hundred and fifty-eight children whose age ranged between 4 and 10 years were included in the research sample through quota sampling. Data were dichotomous so Rasch analysis was used to analyse the data. As result of Rasch analysis, it was found that the separation index is 7; reliability coefficient is 98; and the battery of the theory of mind task has robust model fit based on RMSE, infit mean-square and outfit mean-square. Difficulty analysis indicated that false belief tasks and real vs. disclosed intention are the hardest tasks, while diverse desires, implicit false beliefs, and diverse beliefs are the easiest tasks in the battery.