Constructing a scale of contradictory ideas Preparatory stage in Mosul

The research aimed to build a scale of contradictory ideas for middle school students. The research sample consisted of (400) male and female students for the fourth and fifth grades of the scientific specialization, with (28) paragraphs distributed over four dimensions. The researchers extracted the psychometric properties of the scale, which are represented by validity in its types. The stability of the scale was also verified by the retest method and the Cronbach's alpha method. The scale obtained an acceptable degree of validity and stability, and the scale became ready for application in future studies.