New meta-analysis reveals that Agreeableness and Openness predict prosocial behavior positively across studies.
Data & Methods
This research employed a Bayesian multilevel meta-analysis (MLMA) of 15 interdisciplinary experimental studies, totaling nearly 2500 individual observations. MLMA simultaneously estimated study- and individual-level effects while addressing concerns about incentivized experiments with robust model specifications.
Key Findings
✅ The Big Five traits Agreeableness and Openness are significantly associated with prosocial behavior.
✅ Other Big Five traits show no significant relationship to prosocial actions.
✅ Monetary incentives do not appear to reduce naturally occurring prosocial tendencies.
Why It Matters
These findings provide clarity amidst contradictory literature on personality-prosociality links. The MLMA approach offers a nuanced understanding of how individual differences relate to prosocial behavior even with limited studies.
Methodological Advantages
• Bayesian framework provides unbiased estimates in small study settings
• MLMA explicitly models hierarchical data structure
Limitations & Caveats
🔍 Further research needed across different cultural contexts
🔍 Operationalization limitations acknowledged
This analysis clarifies the complex relationship between personality and prosocial behavior while highlighting methodological innovations.
| Personality and Prosocial Behavior: A Multilevel Meta-Analysis was authored by Reuben Kline and Patrick Kraft. It was published by Cambridge in PSR&M in 2019. |
