▁used ▁the ▁VI A - IS , ▁then ▁they ▁may ▁discover ▁un antic ip ated ▁benefits ▁of ▁their ▁inter vent ions ▁and ▁would ▁facil itate ▁objective ▁evaluation ▁of ▁its ▁outcome . ▁ ▁Pet erson ▁& ▁Sel ig man ▁( 2 0 0 4 ) ▁suggest ▁that ▁the ▁VI A - IS ▁could ▁be ▁used ▁as ▁a ▁way ▁to ▁help ▁people ▁identify ▁their ▁signature ▁strength s . ▁ ▁With ▁this ▁knowledge , ▁people ▁could ▁then ▁begin ▁to ▁capital ize ▁and ▁build ▁upon ▁their ▁signature ▁strength s . ▁ ▁Pos itive ▁psych olog ists ▁argue ▁that ▁the ▁VI A - IS ▁should ▁not ▁be ▁used ▁as ▁a ▁way ▁to ▁identify ▁your ▁‘ less er ▁strength s ’ ▁or ▁weak ness es . ▁ ▁Their ▁approach ▁dep arts ▁from ▁the ▁medical ▁model ▁of ▁traditional ▁psych ology , ▁which ▁focus es ▁on ▁fixing ▁def ic its . ▁ ▁In ▁contrast , ▁positive ▁psych olog ists ▁emphas ize ▁that ▁people ▁should ▁focus ▁and ▁build ▁upon ▁what ▁they ▁are ▁doing ▁well . ▁ ▁Crit ic ism ▁ ▁Many ▁studies ▁have ▁checked ▁the ▁factor ▁structure ▁of ▁the ▁CSV , ▁on ▁which ▁the ▁VI A - IS ▁is ▁based . ▁ ▁Using ▁a ▁second ▁order ▁factor ▁analysis , ▁Mac don ald ▁& ▁colle agues ▁( 2 0 0 8 ) ▁found ▁that ▁the ▁ 2 4 ▁strength s ▁did ▁not ▁fit ▁into ▁the ▁ 6 ▁higher ▁order ▁virt ues ▁model ▁proposed ▁in ▁the ▁CSV . ▁None ▁of ▁the ▁clusters ▁of ▁characters ▁strength s ▁that ▁they ▁found ▁res emble d ▁the ▁structure