Which category does NOT influence observation?

The category that does not influence observation is the concept of being impartial. Impartiality refers to the absence of bias or favoritism in judgment, which is essential when evaluating or interpreting observations. This means that impartiality itself does not directly affect how observations are made; rather, it indicates an objective approach to processing those observations.

In contrast, both external and internal factors can significantly influence a person's observations. External factors may include the environment, weather conditions, or the presence of others, which can alter perceptions and interpretations of events. Internal factors may involve an individual's emotions, thoughts, past experiences, or biases, which can also shape how they observe and understand situations.

Thus, while observation can be influenced by a variety of conditions, maintaining an impartial perspective serves to counteract those influences, making it the category that does not directly affect the act of observing.