A reliable tool produces the same or similar result over time and in different testing situations.

A valid tool actually does what it claims to do. So if the authors of a tool say it can predict performance at work, what proof is there of that claim? If a tool says it measures someone’s personality, exactly what does it mean by personality and how is it measuring that accurately? If it says it can be used for a particular purpose (like recruitment, or development), how much testing has been done to make sure it produces accurate results in those situations?

Fortunately, the British Psychological Society (BPS) does a lot of hard work in this area. The BPS has a set of standards accepted across the world that they use to gauge whether a test can be recommended for use based on its measurement (or psychometric) properties. On their website, you can see which tests have achieved this standard. Using this method means you can be absolutely sure you are using a test that has been proven to be fit for purpose.

Strengthscope® is the first strengths assessment in the world to achieve Registered Test Status with the UK’s British Psychological Society (BPS).