When the cost has sunk: Measuring and comparing the sunk-cost bias in autistic and neurotypical persons

Abstract

Abstract This paper measures and compares the sunk-cost bias among autistic adults, and neurotypical controls. Frequent influencing personality traits and task factors affecting the sunk-cost bias such as age, gender, and education level, time spent in the decision task, and the level of sunk cost (e.g., very low, low, moderate, and high), are controlled for in the analysis. Results show that both autistic and neurotypical individuals are subject to the sunk-cost bias, however, with autistic individuals being less affected by this bias. Results also show significant differences among subgroups of autistic and neurotypical individuals, with autistic individuals with more autism traits being less subject to the sunk-cost bias. For individuals with autism, time spent in the decision task is found to be negatively associated to the sunk-cost bias.