This design enabled them to control for several factors. the total area of the patch plus the corridor, or the patch plus the wings was the same. the total amount of edge (perimeter of each patch) was similar between the two treatments. both patch types were the same distance from the central patch. below are 4 examples of ways damschen and her colleagues could have designed their experiment. identify what is wrong with each design?

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.