▁for ▁relative ▁age ▁advantage / dis adv antage , ▁for ▁example ▁by ▁the ▁re - calcul ation ▁of ▁s print ▁times ▁according ▁to ▁relative ▁age ▁within ▁a ▁coh ort . ▁ ▁C ut - off ▁date ▁– ▁an ▁administr atively ▁defined ▁date ▁in ▁the ▁calendar ▁which ▁determ ines ▁the ▁el ig ibility ▁of ▁individuals ▁to ▁be ▁included ▁in ▁a ▁coh ort , ▁usually ▁a ▁competition ▁or ▁an ▁academic ▁year ▁group . ▁A ▁birth ▁date ▁prior ▁to ▁the ▁cut - off ▁date ▁ex cludes ▁an ▁individual ▁and ▁a ▁birth ▁date ▁after ▁the ▁cut - off ▁date ▁includes ▁an ▁individual . ▁ ▁Multi - age ▁grouping ▁– ▁the ▁bro aden ing ▁of ▁coh ort ▁selection ▁to ▁en comp ass ▁multiple ▁chron ological ▁age ▁groups . ▁For ▁example , ▁a ▁Multi - age ▁class room . ▁ ▁Rel ative ▁Age ▁Adv antage ▁– ▁a ▁compet itive ▁advantage ▁acc ru ing ▁to ▁an ▁individual ▁due ▁to ▁being ▁born ▁early ▁in ▁a ▁selection ▁period . ▁A ▁relative ▁age ▁advantage ▁can ▁also ▁acc r ue ▁to ▁a ▁group ▁consisting ▁of ▁a ▁majority ▁of ▁relatively ▁older ▁individuals . ▁ ▁Rel ative ▁Age ▁B ias ▁– ▁a ▁t endency ▁towards ▁the ▁prior it ised ▁selection ▁of ▁relatively ▁older ▁members ▁of ▁a ▁coh ort . ▁ ▁Rel ative ▁Age ▁Character istic ▁( of ▁an ▁individual ) ▁– ▁the ▁quality ▁of ▁having ▁been ▁born ▁early ▁or ▁late ▁in ▁the ▁selection ▁period . ▁ ▁Rel ative ▁Age ▁Compet ition ▁– ▁competition ▁designed ▁to ▁avoid ▁cut - off ▁date ▁rules , ▁such ▁as ▁‘ aver