. ▁In ▁each ▁group , ▁they ▁found ▁that ▁the ▁amount ▁of ▁correct ▁information ▁re called ▁did ▁not ▁differ , ▁yet ▁in ▁the ▁group ▁where ▁participants ▁were ▁given ▁an ▁in cent ive ▁they ▁had ▁higher ▁accuracy ▁results . ▁This ▁means ▁that ▁present ing ▁participants ▁with ▁an ▁encourag ement ▁to ▁provide ▁correct ▁information ▁motiv ates ▁them ▁to ▁be ▁more ▁precise . ▁However , ▁this ▁is ▁only ▁true ▁if ▁the ▁per ception ▁is ▁that ▁success ▁is ▁providing ▁correct ▁information . ▁When ▁it ▁is ▁believed ▁that ▁success ▁is ▁the ▁completion ▁of ▁the ▁task ▁rather ▁than ▁the ▁accuracy ▁of ▁that ▁completion , ▁the ▁number ▁of ▁responses ▁is ▁higher , ▁yet ▁its ▁accuracy ▁is ▁lower ed . ▁This ▁shows ▁that ▁the ▁results ▁are ▁dependent ▁on ▁how ▁success ▁is ▁defined ▁to ▁the ▁particip ant . ▁In ▁the ▁referred ▁experiment , ▁the ▁participants ▁that ▁were ▁placed ▁in ▁the ▁forced ▁response ▁group ▁had ▁the ▁lowest ▁overall ▁accuracy ; ▁they ▁had ▁no ▁motiv ation ▁to ▁provide ▁accurate ▁responses ▁and ▁were ▁forced ▁to ▁respond ▁even ▁when ▁they ▁were ▁uns ure ▁of ▁the ▁answer . ▁Another ▁study ▁done ▁by ▁Hill ▁R D , ▁St or and t ▁M , ▁and ▁S ime one ▁C ▁tested ▁the ▁impact ▁of ▁memory ▁skills ▁training ▁and ▁external ▁reward ▁on ▁free ▁recall ▁of ▁serial ▁word ▁lists . ▁Effect s ▁similar ▁to ▁those ▁reported ▁in ▁the ▁previous ▁study ▁were ▁seen ▁in ▁children — in ▁contrast ▁to ▁older ▁learn ers . ▁ ▁Inter ference ▁In ▁the ▁absence ▁of ▁inter ference , ▁there ▁are ▁two ▁factors ▁at ▁play ▁when ▁recall ing ▁a ▁list