▁constraints ▁may ▁consequ ently ▁affect ▁the ▁time ▁available ▁in ▁which ▁to ▁do ▁the ▁evaluation ▁( B am berger ▁et ▁al ., ▁ 2 0 0 4 ). ▁Bud get ▁constraints ▁may ▁be ▁addressed ▁by ▁simpl ifying ▁the ▁evaluation ▁design , ▁revis ing ▁the ▁sample ▁size , ▁expl oring ▁econom ical ▁data ▁collection ▁methods ▁( such ▁as ▁using ▁volunte ers ▁to ▁collect ▁data , ▁short ening ▁surve ys , ▁or ▁using ▁focus ▁groups ▁and ▁key ▁inform ants ) ▁or ▁looking ▁for ▁reliable ▁secondary ▁data ▁( B am berger ▁et ▁al ., ▁ 2 0 0 4 ). ▁ ▁Time ▁constraints ▁The ▁most ▁time ▁constraint ▁that ▁can ▁be ▁faced ▁by ▁an ▁evalu ator ▁is ▁when ▁the ▁evalu ator ▁is ▁sum mon ed ▁to ▁conduct ▁an ▁evaluation ▁when ▁a ▁project ▁is ▁already ▁under way ▁if ▁they ▁are ▁given ▁limited ▁time ▁to ▁do ▁the ▁evaluation ▁compared ▁to ▁the ▁life ▁of ▁the ▁study , ▁or ▁if ▁they ▁are ▁not ▁given ▁enough ▁time ▁for ▁ade qu ate ▁planning . ▁Time ▁constraints ▁are ▁particularly ▁problem atic ▁when ▁the ▁evalu ator ▁is ▁not ▁familiar ▁with ▁the ▁area ▁or ▁country ▁in ▁which ▁the ▁program ▁is ▁situated ▁( B am berger ▁et ▁al ., ▁ 2 0 0 4 ). ▁Time ▁constraints ▁can ▁be ▁addressed ▁by ▁the ▁methods ▁listed ▁under ▁budget ▁constraints ▁as ▁above , ▁and ▁also ▁by ▁careful ▁planning ▁to ▁ensure ▁effective ▁data ▁collection ▁and ▁analysis ▁within ▁the ▁limited ▁time ▁space . ▁ ▁Data ▁constraints ▁If ▁the ▁evaluation ▁is ▁initi ated ▁late ▁in ▁the ▁program , ▁there ▁may ▁be ▁no ▁bas eline