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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