Matching Pairs Social science 1.3Online version population by Dana Senande Martín 1 MALE ELDERLY (+71) 2 MALE CHILD (UNDER 12) 3 FEMALE ELDERLY (+71) 4 MALE ADULT (21-70) 5 MALES ADOLESCENTS (13-20) 6 FEMALE CHILD (UNDER 12) 7 FEMALE ADULT (21-70) 8 FEMALES ADOLESCENTS (13-20)