Cognitive reflection, 2D:4D and social value orientation

Area of Science:

• Psychology
• Behavioral Economics

Background:

• The relationship between digit ratio (2D:4D), cognitive styles, and prosocial behavior is complex and yields inconsistent findings in prior research.
• Understanding these links is crucial for comprehending the biological and cognitive underpinnings of altruistic decision-making.

Purpose of the Study:

• To test the hypothesis that 2D:4D digit ratio predicts prosociality, particularly when individuals rely on intuition over deliberation.
• To investigate the differential impact of cognitive reflection measures on prosocial decision-making.

Main Methods:

• Participants' reliance on intuition versus deliberation was assessed using the Cognitive Reflection Test (CRT).
• Prosociality was measured using the Social Value Orientation (SVO) slider measure.
• Two versions of the Cognitive Reflection Test (CRT and CRT-2) were employed.

Main Results:

• No collective evidence supported the main hypothesis that 2D:4D predicts prosociality.
• A nuanced finding emerged: for men with low (right) 2D:4D, increased intuition correlated with decreased prosociality.
• Only the CRT-2 measure, not the classic CRT, positively predicted prosociality.

Conclusions:

• The study highlights a complex interplay between 2D:4D, cognitive style, and prosociality, with specific effects observed in subgroups (low 2D:4D men).
• The findings underscore the importance of using specific cognitive reflection measures (CRT-2) for understanding prosocial decision-making.
• Results necessitate further research to confirm observed patterns and explore underlying mechanisms.