Table 1: Summary of results.

From: On The Evolutionary Origin of Symbolic Communication

Table 1: Summary of results.
Comm. typeNumber of runsMax. isl. repro. rate (per era)Number of eras
μσRank-sumμσRank-sum
Symbolic923890.111044.48P < 0.000011234.00173.91P = 0.12215
Indexical9020030.891510.12P < 0.000011373.19296.99P = 0.09423
None117559.55409.961222.36242.98
  1. Runs are divided into three types based on the highest level of communication that emerged (“none” in the case of one run where communication never emerged and 10 additional runs with ωin = 0 for all t). The average (μ), standard deviation (σ), and two-tailed Wilcoxon rank-sum test P values are shown.