Is a web-based type instrument enough? Are they accurate? Will web-based technology substitute for working with a professional coach? There are an abundance of personality type ‘tests’ and descriptions on the internet. They are very easy to construct. It is not so easy to be sure they are accurate. Some of these have well-researched foundations like the Myers-Briggs Type Indicator (MBTI) ® instrument and others are just constructed by enthusiastic, but naive type without the depth of knowledge to know if what they are describing is accurate. And some fall in between these extremes. In my many years of experience, helping people find their best fit type takes more than an instrument. The purpose of my post here is to outline some criteria that you can use when you explore all of these type resources on the internet. Instrument Accuracy: What is the best-fit accuracy rate (sometimes reported as error rate)? Most of those on the web don’t report accuracy data and if fact many don’t report any data at all. If they do, you have to dig for it. The MBTI® manual cites a range from 58% to 85% agreement with self-estimates of type. (page 197 in the Third...