A replication of Triplett’s ‘social facilitation experiment’

social facilitation
competition
methods
Scientific Reports (2025)
Authors
Affiliations

Cillian McHugh

Centre for Social Issues Research, Department of Psychology, University of Limerick, Limerick, Ireland

Siobhán M. Griffin

Centre for Social Issues Research, Department of Psychology, University of Limerick, Limerick, Ireland

Elaine L. Kinsella

Centre for Social Issues Research, Department of Psychology, University of Limerick, Limerick, Ireland

Mike Quayle

Centre for Social Issues Research, Department of Psychology, University of Limerick, Limerick, Ireland

Bob Strunz

Centre for Robotics and Intelligent Systems, Department of Electronics and Computer Engineering, University of Limerick, Limerick, Ireland

Orla T. Muldoon

Centre for Social Issues Research, Department of Psychology, University of Limerick, Limerick, Ireland & School of Psychology, Queens University of Belfast, Belfast, UK

Published

November 18, 2025

A seminal study by Triplett provided initial evidence for the social facilitation effect, and over the last century, research has demonstrated this effect across a range of settings. However, despite the importance attributed to Triplett’s study, no research has replicated the original study paradigm. Furthermore, in the context of research advances and methodological rigour, some elements of the original study weaken the validity of the observed findings. We address these critical limitations and replicate the original study, employing a standardized study protocol to minimize potential confounds, such as practice effects. This research reports on 445 school-aged children (Mage = 10.8, SD = 1.3) who completed the study. As pre-registered in our Stage 1 submission, using a purpose-built apparatus, participants turned a crank to move a marker along a string course between two pulleys. Pairs of participants completed this task four times, twice alone and twice together. Trial order was standardized and balanced to control for possible order/practice effects. In line with Triplett’s original study, we show that participants completed the task faster in the together condition than in the alone condition. We also show interesting variability depending on age and gender, as well as demonstrating “carryover” effects. Thus, we replicate and extend this classic finding, adding to the literature on social facilitation/competitive coaction. In addition, the materials and methods developed here provide a template for future studies to further examine this phenomenon.


Data collection apparatus

Data collection apparatus
Bibliography
McHugh, C., Griffin, S. M., Kinsella, E. L., Quayle, M., Strunz, B., & Muldoon, O. T. (2025). A replication of Triplett’s ‘social facilitation experiment.’ Scientific Reports, 15(1), 40366. https://doi.org/10.1038/s41598-025-25608-x