WHat is the preferred level of taxonomy in reasoning? Why that particular level is preferred? Explain this by referring to informational content and cognitive economy.

WHat is the preferred level of taxonomy in reasoning? Why that particular level is preferred? Explain this by referring to informational content and cognitive economy.

According to research done by Rosch, the prefered level is the basic one. He argues that by climbing the ladder to the specific level, an individual would lose a lot of information and by refering to the specific level gain little. Furthermore, additional research has shown that participant's reaction times are faster for the basic level. They decide quicker that the picture of an automobile is a car (basic) than a vehicle (global). An exception is the reason of experts in specific fields. For instance, an expert on birds is much more likely to refer to the specific level (robin, blue-jay, cardinal) than a non-expert.
Furthermore, according to the theory of cognitive economy, many of the individual traits of, lets say birds, are stored at the basic level. Because the apply to almost every example of the category it is "ecological" to place it at the basic level, than have that piece of information stored at every nod, for every bird. This comes to show, that much of what we know about birds is at the basic level. Hence, it is efficient to prefer this level.