ium ▁associated ▁with ▁education ▁in ▁general ▁and ▁post - second ary ▁education ▁in ▁particular . ▁ ▁Two ▁research ers ▁have ▁suggested ▁that ▁children ▁in ▁low ▁income ▁families ▁are ▁exposed ▁to ▁ 6 3 6 ▁words ▁an ▁hour , ▁as ▁opposed ▁to ▁ 2 , 1 5 3 ▁words ▁in ▁high ▁income ▁families ▁during ▁the ▁first ▁four ▁form ative ▁years ▁of ▁a ▁child ' s ▁development . ▁This , ▁in ▁turn , ▁led ▁to ▁low ▁achiev ement ▁in ▁later ▁school ing ▁due ▁to ▁the ▁in ability ▁of ▁the ▁low ▁income ▁group ▁to ▁ver bal ize ▁concepts . ▁ ▁A ▁psych ologist ▁has ▁stated ▁that ▁society ▁st ig mat izes ▁pover ty . ▁Con vers ely , ▁poor ▁people ▁tend ▁to ▁believe ▁that ▁the ▁wealth y ▁have ▁been ▁luck y ▁or ▁have ▁earned ▁their ▁money ▁through ▁illegal ▁means . ▁She ▁bel ieves ▁that ▁both ▁att itudes ▁need ▁to ▁be ▁disc arded ▁if ▁the ▁nation ▁is ▁to ▁make ▁head way ▁in ▁address ing ▁the ▁issue ▁of ▁inequality . ▁She ▁suggests ▁that ▁college ▁not ▁be ▁a ▁lit mus ▁test ▁of ▁success ; ▁that ▁valor izing ▁of ▁one ▁profession ▁as ▁more ▁important ▁than ▁another ▁is ▁a ▁problem . ▁ ▁Sk ill - bi ased ▁techn ological ▁change ▁ ▁As ▁of ▁the ▁mid - ▁to ▁late - ▁de cade ▁of ▁the ▁ 2 0 0 0 s , ▁the ▁most ▁common ▁explanation ▁for ▁income ▁inequality ▁in ▁America ▁was ▁" sk ill - bi ased ▁techn ological ▁change " ▁( SB TC ) ▁ ▁– ▁" a ▁shift ▁in ▁the