Table 1 Estimation results of the biased DDM

From: Biased sequential sampling underlies the effects of time pressure and delay in social decision making

 

Subject type

Relative starting point (z)

Non-decision time (t0) (s)

Threshold (a)

Group level

Selfishly predisposed

0.547 (0.010)

0.272 (0.076)

3.419 (0.047)

Pro-socially predisposed

0.403 (0.008)

0.426 (0.042)

3.818 (0.061)

Individual level

Selfishly predisposed

0.564 (0.015)

0.743 (0.056)

3.356 (0.107)

Pro-socially predisposed

0.452 (0.019)

0.692 (0.042)

4.204 (0.216)

  1. The standard errors of the estimators are reported in parentheses. The standard errors at the group level are calculated using a jackknife method74, 75. The estimated drift rates and variability of the starting points at the group level are not reported. Details of the estimated parameters at the individual level are reported in Supplementary Table 4.
Back to article page