36
Table 67 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
1 combination both combin. N
no solution
CBSOL6 found solution
0.0%
60,0%
25
40,0%
SES
high
Variable
N
no solution
one combin. both combin.
found solution
CBSOL6
0,0%
35,3%
64,7%
34
—
Table 67 b
Combinatorial reasoning:
Solution probabilities at age 17
by social class in six categories
Urban sample
—
Variable
no solut. 1 combin. 2 comb.
SES
N
—
42,9%
7
low/low
CBSOL6
0,0%
found solution
57,1%
9
CBSOL6
88,9%
low/high
found solution
11,1%
0,0%
44,4%
CBSOL6
middle/low
found solution
9
55,6%
0,0%
CBSOL6 found solution
14
50,0% 50,0%
0,0%
middle/high
CBSOL6
75,0%
high/low
found solution
25,0%
0,0%
12
found solution
high/low
CBSOL6
75,0%
0,0% 25,0%
8
Table 68
Combinatorial reasoning:
Solution probabilities at age 17
Urban sample
Variable
13-19
7-12
20-26
N
CBSTP6
number of trials
13,6%
69,5%
16,9%
59
Table 69
Combinatorial reasoning:
Solution probabilities at age 17
by teacher rating
Urban sample
Teacher rating
high
Variable
7-12
13-19
20-26
X
CBSTP6 number of trials
39
12,8%
74,2% 12,7% —
low
Teacher rating
20-26
N
Variable
7-12
13-19
60%
number of trials
CBSTP6
20
25,0%
15,0%