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Table 2 The number of respondents who agreed or disagreed with the statements and their aggregate opinion on plant intelligence measured by combining all plant behavioral examples indicative of plant intelligence. All statistically significant results had statistically significant pairwise comparisons (two proportion Z test)

From: Understanding interdisciplinary perspectives of plant intelligence: Is it a matter of science, language, or subjectivity?

Perspectives Combined opinion of plant intelligence Chi-square value Cramer's V p value n References
   Intelligent Not intelligent      
1. A plant or tree has spoken to me before Agree 11 2 5.597 0.23 0.018 108 [46]
  Disagree 43 52      
2. I believe that hallucinogenic drugs reveal inner truths of an individual and other truths of the world. These “hallucinations” are not irrelevant Agree 25 9 7.143 0.27 0.008 94 [56]
  Disagree 28 37      
3. I believe singing or talking to plants doesn't have any effect on the plant Agree 12 34 22.809 0.48 < 0.001 100 [57, 58]
  Disagree 41 13      
4. I don't believe in the significance of dreams; they do not hold any factual truth about the world Agree 15 27 8.719 0.29 0.003 103 [42, 46]
  Disagree 41 20      
5. I believe that the Flora kingdom can communicate with us, either through dreams, visionary illustration and/or other means of communication Agree 35 7 23.343 0.47 < 0.001 105 [59, 60]
  Disagree 21 42      
6. I believe that plants are teachers Agree 40 23 4.537 0.21 0.033 103 [46, 60]
  Disagree 16 24      
7. I would consider myself spiritual. By spiritual, it does not necessarily conform to a labeled religion Agree 36 16 7.143 0.27 0.005 107 [49, 51]
  Disagree 22 33      
8. I don't believe in the existence of a spiritual, unseen dimension Agree 31 17 5.725 0.24 0.017 100 [49, 51]
  Disagree 21 33      
9. I practice mindful meditation when I can. I believe its practices allow me to connect with my higher self Agree 34 44 11.478 0.32 0.003 115 [49, 51]
  Disagree 25 6      
10. I incorporate Eastern philosophy into my way of living such as Taoism, Buddhism and Hinduism Agree 16 7 5.597 0.16 0.033 111
  Disagree 41 47      
11. I am a person who listens and follows what my heart says relatively more than my mind Agree 21 13 2.465 0.29 99 [61]
  Disagree 27 34      
12. I feel strongly and personally connected to nature Agree 57 45 3.276 0.19 117 [5]
  Disagree 3 7