How accurate is the ‘wet test’ to determine my foot/arch type?

The ‘wet test’ has been mentioned in several magazines and countless running online portals as THE test to figure out your foot and arch type. This is supposed to help you determine the type of shoe you need. The wet test consists of getting your foot wet and then stepping on paper. Depending on the outline that you see, you determine your arch height. Even though this is popular, every good sports physician will tell you that this is totally inaccurate and hence useless. This test is a static test which tells you what your arch does when you stand. What your foot does while running is altogether a separate thing. In order to accurately determine foot/arch height and thereby determine the type of shoe right for you, it is imperative that an expert looks at your run and helps you find the right shoes.