Table 70 
Combinatorial reasoning: 
Solution probabilities at age 17 
by gender 
Urban sample 
Gender 
female 
13-19 
Variable 
7-12 
 
CBSIP6 
number of trials 
70,6% 
8,8 % 
— 
Gender 
male 
13-19 
Variable 
7-12 
 
0 
number of trials 
CBSIP6 
20,0% 
68% 
— 
Table 71 a 
Combinatorial reasoning: 
Solution probabilities at age 17 
by social class in two categories: low (SES 1-3), high (SES 4-6) 
Urban sample 
SES 
low 
— 
Variable 
13-19 
7-12 
 
number of trials 
CBSIP6 
16,0% 
72,0% 
SES 
high 
Variable 
7-12 
13-19 
e 
number of trials 
CBSTP6 
67,7 % 
11,8% 
Table 71 b 
Combinatorial reasoning: 
Solution probabilities at age 17 
by social class in six categories 
Urban sample 
Variable 
SES 
13-19 
7-12 
— 
number of trials 
CBSSTP6 
43, 0% 
low/low 
28,6% 
CBSSTP6 
88,8% 
low/high 
11,1% 
number of trials 
middle/ low 
77,7% 
CBSSTP6 number of trials 
11,1% 
CBSSTP6 number of trials 
70,7% 
middle/high 
7,1% 
high/low 
75,0% 
CBSSTP6 
number of trials 
8,3% 
 
an 
high/low 
number of trials 
25,0% 50,0% 
CBSSTP6 
Table 72 
Combinatorial reasoning: 
Solution probabilities at age 17 
Urban sample 
II B 
III A 
Variable 
HIA 
13,6% 30,5% 23,7 % 
CBSTI6 number of trials 
20-26 
20,6% 
20-26 
12% 
 
20-26 
12,0% 
20-26 
20,5% 
N 
34 
N 
25 
N 
25 
 
N 
34 
N 
20-26 
7 
28,6% 
9 
0,0% 
9 
11,1% 
14 
21,3% 
8,3% 
12 
25,0% 
8 
III B N 
32,3 % 
59 
— 
37