On a regular spring time a lot of tulip flower fields outside the Keukenhof are headed (taking the flower off) on the 30th of April or within a couple of days after it. If you want to see the flower fields as well make sure that you visit before this date!
In factorial designs, a factor is a major independent variable. In this example we have two factors: time in instruction and setting. A level is a subdivision of a factor. In this example, time in instruction has two levels and setting has two levels. Sometimes we depict a factorial design with a numbering notation.
Fortunately for your reputation and discussion at parties there is actually a lot of complex depth at play when it comes to successful designing, and it all starts with the principles of design. LEFT: The Balance is shifted to the Left. RIGHT: The balance is even. Balance, like physics, determines how weighted a design is to a certain area.