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Table 2 Statistical test of significance and independent t test on the number of medicinal plants mentioned by informant groups in Gubalafto District

From: Ethnobotanical study of medicinal plants used against human ailments in Gubalafto District, Northern Ethiopia

Parameters

Informant group

N

No. of plant species reported

Mean

t value**

P value

Informant category

General informant

51

303

5.94

− 4.334

0.000*

Healer

33

541

16.39

Gender

Male

68

706

10.38

0.529

0.598

Female

16

138

8.63

Age

Younger(20–39 years)

21

176

8.38

− 0.739

0.462

Elder (40–84 years)

63

668

10.60

  1. *Significant difference (P < 0.05), **t (0.05) (two tailed), df = 82, N= number of respondents