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Is Mental Effort Exertion Contagious? A Replication Study.

Alessandro Mazza1, Ellen Voorrips1, Gethin Hughes2

  • 1KU Leuven, Faculty of Psychology and Educational Sciences, Brain and Cognition, Tiensestraat 102, 3000 Leuven, Belgium.

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Summary
This summary is machine-generated.

This study investigated if observing others

Keywords:
cognitive controljoint Simon taskmental effort contagionreplication

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Area of Science:

  • Social Psychology
  • Cognitive Psychology

Background:

  • The mere presence of others influences performance.
  • It is less clear if others' performance, not just their presence, influences us.

Purpose of the Study:

  • Replicate Desender et al. (2016) study on contagious mental effort.
  • Investigate why replication failed in two subsequent experiments.

Main Methods:

  • Two experiments using a modified joint Simon task.
  • Manipulated participants completed easy/difficult blocks; neutral participants performed neutral blocks.

Main Results:

  • Failed to replicate the contagious mental effort effect in both experiments.
  • Manipulated participants' effort adjusted as expected, but neutral participants did not mirror it.

Conclusions:

  • Methodological factors like counterbalancing and limited cue visibility may explain discrepancies.
  • Robust statistical re-analysis of original data suggests findings may be unreliable.