Decoding Academia 32: Do Babies REALLY like good guys?

In this episode, Matt and Chris take a look at a recent developmental psychology paper on the social evaluation of young babies. Do they display a preference for agents who are nice to others or could they care less at the babbling age? This is a large-scale, multi-lab, preregistered replication effort of a rather influential paper so it ticks all of Chris' Open Science boxes, but how does Matt react? Is he stuck in his pre-replication crisis paradigms? Join us to find out and along the way find out about baby Matt's psychotic tendencies, how cats feel about cucumbers, and how Matt narrowly escaped being eaten by a big ol' crocodile.Paper Reference: Lucca, K., Yuen, F., Wang, Y., Alessandroni, N., Allison, O., Alvarez, M., ... & Hamlin, J. K. (2025). Infants’ Social Evaluation of Helpers and Hinderers: A Large‐Scale, Multi‐Lab, Coordinated Replication Study. Developmental Science, 28(1), e13581.Original Study: Hamlin, J. K., Wynn, K., & Bloom, P. (2007). Social evaluation by preverbal infants. Nature, 450(7169), 557-559.Decoding Academia 3200:00 Introduction00:59 Matt's Close Shave with a Crocodile03:15 Discussion on Crocodile Behavior05:13 Introduction to the Academic Paper06:18 Understanding Registered Reports07:49 Details of the Replication Study12:07 The Many Babies Study18:23 Challenges in Developmental Psychology20:35 Original Study and Replication Efforts26:27 HARKing and the QRP problem in psychology34:24 Discussing the Results36:58 Exploring the Red Ball Experiment39:38 Forest Plot Analysis41:19 Infant Preferences and Social Evaluation43:24 Failure to Replicate the Original Study47:06 Exploratory Analysis and Moderators50:03 Interpretations and Implications54:21 Evolutionary Perspectives on Social Behavior58:34 Prosocial Evolutionary Speculation01:05:10 Psychopathic Baby Matt01:06:28 Concluding Thoughts and Reflections01:11:20 Comparative Psychology on Snake Hatred!The full episode is available for Patreon subscribers (1hrs 15 mins).Join us at: https://www.patreon.com/DecodingTheGurus

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