What is your IQ if you are a 16-year-old male and you took two IQ tests and your first score was 131 and your second score was 120?
There is a statiistically correct answer to this question, but the practical answer is: your IQ is closer to 130. It is nearly impossible to raise your IQ score (unless you have prior knowledge of IQ test items), but easy to lower it (bad test day, fatigue, low motivation, illness, etc.) So, it is reasonable to presume that the lower score was a consequence of something negatively influencing testing performance. Dr. Jed Struckus Clinical Neurologist in simpler words, an IQ is an intelligence quotient: not an indicator of intelligance.