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Table 5 Comparison of knowledge differences among different groups of informants

From: An ethnobotanical study of medicinal plants in Sheka Zone of Southern Nations Nationalities and Peoples Regional State, Ethiopia

Parameters used

Informant groups

n

Average ± SD

Z value**

P value*

Gender

Male

380

5.542 ± 3.7248

z = − 1.9908

0.0465

Female

34

4.765 ± 1.9857

Age

18–30 (youngers)

87

4.149 ± 0.2178

z = − 5.5160

0.00001

> (Elders)

327

5.832 ± 0.2135

Literacy level

Illiterate

241

6.295 ± 0.2112

z = 5.4882

0.00001

Literate

173

4.341 ± 0.2865

Informant category

Key informants

30

13.367 ± 1.4259

z = − 5.9481

0.00001

General informants

384

4.862 ± 0.1051

Total number of informants (N)

414

–

–

–

  1. *Significant difference (p < 0.05); **z (0.05) (two-tailed), df = 412, N = 414, n = number of respondents