Group, number of subj

Success of 1^st extrfpolation task solution (in%)

p^*

Success of 6 extrapolation. tasks solution

p^*

EX n = 107

68.2

p < 0.001

70.7

p < 0.001

CoEX n = 88

62

p < 0.01

59%

p < 0.001