The IPCC data-set comprises the lower, best, and upper estimates for the phrases "likely" and "unlikely" in six IPCC report sentences.
IPCC
A data frame with 4014 rows and 8 variables:
Subject ID number
Experimental conditions
Valence of the sentences
raw probability estimates
Linear transformed prob into (0, 1) interval
Distinguish lower, best and upper estiamtes
Distinguish lower, best and upper estiamtes
IPCC question number