Clarity of task difficulty moderates the impact of the explicit achievement motive on physical effort in hand grip tasks

• Michael Richter ,

  Contributed equally to this work with: Michael Richter, Florence Mazeres, Kerstin Brinkmann

  Roles Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft

  * E-mail: m.richter@ljmu.ac.uk, m.richter2020@outlook.com

  Affiliation Effort Lab, School of Psychology, Liverpool John Moores University, Liverpool, United Kingdom

  https://orcid.org/0000-0003-1868-9005

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• Florence Mazeres ,

  Contributed equally to this work with: Michael Richter, Florence Mazeres, Kerstin Brinkmann

  Roles Conceptualization, Methodology, Writing – original draft

  Affiliation Geneva Motivation Lab, University of Geneva, Geneva, Switzerland

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• Kerstin Brinkmann

  Contributed equally to this work with: Michael Richter, Florence Mazeres, Kerstin Brinkmann

  Roles Conceptualization, Funding acquisition, Methodology, Writing – original draft

  Affiliation Geneva Motivation Lab, University of Geneva, Geneva, Switzerland

  https://orcid.org/0000-0002-2075-9677

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