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In recent years, with the use of e-commerce sites the need for adaptive contents to help customers to find suitable online products to purchase. Despite the limited use of adaptive services, most of these sites have "complex buyer behavior" often marked by customer confusion and information overload because of neglecting customers purchasing power ability. Therefore, this paper applies psychological testing method called Computerized Adaptive Testing (CAT) taking into account product price,fatcat:7o5l526dtjfi3polqauzrkvf5e