Table (2) that:
Alpha value related to items of planning equals to 0.71.
Alpha value related to items of controlling equals to 0.75.
Alpha value related to items of decision Making equals to 0.82.
Alpha value related to items of difficulties equals to 0.79
Alpha value related to all items equals to 0.88.
All these values are greater than 0.60 which means that the measure is stable.