Table 2.

Experts’ opinion related to the cognitive development

	$m_1$	$m_2$	$m_3$
$c_1$	(0.69, 0.54)	(0.76, 0.41)	(0.87, 0.27)
$c_2$	(0.73, 0.48)	(0.89, 0.19)	(0.56, 0.59)
$c_3$	(0.84, 0.34)	(0.72, 0.39)	(0.61, 0.44)
$f_M(m_i)$	(0.72, 0.56)	(0.75, 0.63)	(0.86, 0.40)