yes he can use the power he got to boost his iQ for example if he read a book once he can multiply it by 100 million successfully master the topic of the book
The Overseer regarded Alex with a knowing gaze. "Your wish is granted," it proclaimed, its words carrying a weight that resonated through the void. "You shall possess the power of 'God Rewards Hard Work,' with a multiplication factor of 100,000,000 per training session."