Individual Values (or IV's) are the hidden stats which determine the Strength, Stamina and Defense of any Pokemon in the mobile app Pokemon Go. Each point is assigned a random value between 0-15. 0 is the worst stat and will see the least growth. 15 is the best stat and will see massive growth overall.
Determining a Pokemon's stats can be done using a mathematical formula or any number of IV calculators found online.
HP Stat Formula
Go HP = 2 x HP Stat
Go Attack = (Attack x Special Attack)^0.5 + Speed^0.5
Go Defense = (Defense x Special Defense)^0.5 + Speed^0.5
Determine Combat Points
Combat Points = ((Base Attack + Attack IV) x (Base Defense + Defense IV)^0.5 x (Base HP + HP IV)^0.5 x (Power Up Value^2)/10)