▁was ▁to ▁find ▁out ▁why ▁family ▁relations ▁differ ed ▁among ▁various ▁South ▁American ▁cult ures . ▁The ▁father ▁might ▁have ▁great ▁authority ▁over ▁the ▁son ▁in ▁one ▁group , ▁for ▁example , ▁with ▁the ▁relationship ▁rig id ly ▁restricted ▁by ▁tab o os . ▁In ▁another ▁group , ▁the ▁mother ' s ▁brother ▁would ▁have ▁that ▁kind ▁of ▁relationship ▁with ▁the ▁son , ▁while ▁the ▁father ' s ▁relationship ▁was ▁relax ed ▁and ▁play ful . ▁ ▁A ▁number ▁of ▁partial ▁patterns ▁had ▁been ▁noted . ▁Rel ations ▁between ▁the ▁mother ▁and ▁father , ▁for ▁example , ▁had ▁some ▁sort ▁of ▁reci pro city ▁with ▁those ▁of ▁father ▁and ▁son – if ▁the ▁mother ▁had ▁a ▁dominant ▁social ▁status ▁and ▁was ▁formal ▁with ▁the ▁father , ▁for ▁example , ▁then ▁the ▁father ▁usually ▁had ▁close ▁relations ▁with ▁the ▁son . ▁But ▁these ▁smaller ▁patterns ▁joined ▁together ▁in ▁incons istent ▁ways . ▁One ▁possible ▁way ▁of ▁finding ▁a ▁master ▁order ▁was ▁to ▁rate ▁all ▁the ▁positions ▁in ▁a ▁kin ship ▁system ▁along ▁several ▁dimensions . ▁For ▁example , ▁the ▁father ▁was ▁older ▁than ▁the ▁son , ▁the ▁father ▁produced ▁the ▁son , ▁the ▁father ▁had ▁the ▁same ▁sex ▁as ▁the ▁son , ▁and ▁so ▁on ; ▁the ▁mat ril ine al ▁uncle ▁was ▁older ▁and ▁of ▁the ▁same ▁sex , ▁but ▁did ▁not ▁produce ▁the ▁son , ▁and ▁so ▁on . ▁An ▁exhaust ive ▁collection ▁of ▁such ▁observations ▁might ▁cause ▁an ▁overall ▁pattern ▁to ▁emer ge . ▁ ▁But ▁for ▁Lé vi - St