From: Ethnobotanical study of medicinal plants in Ganta Afeshum District, Eastern Zone of Tigray, Northern Ethiopia
Parameter
Category of informants
N
Mean
Std. deviation
t value
df
p value
Way of selection
General informants
58
9.6724
5.52947
5.827
76
.000
Key informants
20
19.4000
8.60477
4.730
24.630