Table 1 Assignment of research variables

Sex

1 = Male; 2 = Female

Area

1 = Town; 2 = Rural area

Length of schooling

1 = Five-year; 2 = Four-year

Grade

1 = First grade; 2 = Second grade; 3 = Third grade; 4 = Grade 4 and above

Network tools used

1 = Computer/tablet; 2 = Mobile phone and others

Proficiency

1 = Proficiency; 2 = General / unskilled