What term below refers to the process of assessing an attitudinal disposition using a number that represents a person's score on an attitudinal continuum ranging from an extremely favorable disposition to an extremely unfavorable one?

Peripheral Route Processing

Explanation:

Based on the information provided within the question it can be said that the process being described in the question is called Peripheral Route Processing. This occurs when someone evaluates something or someone based on superficial factors instead of the actual person or message, such as the attitudinal disposition.