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Related Experiment Video

Updated: May 17, 2026

Studying Food Reward and Motivation in Humans
12:09

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Published on: March 19, 2014

Effort test failure: toward a predictive model.

James W Webb1, Jennifer Batchelor, Susanne Meares

  • 1Department of Psychology, Macquarie University, Sydney, NSW, Australia. james.webb@xtra.co.nz

The Clinical Neuropsychologist
|October 16, 2012
PubMed
Summary
This summary is machine-generated.

Effort test failure in traumatic brain injury (TBI) survivors is linked to factors like seeking compensation, mood disorders, and immigration status. Psychological and behavioral signs significantly predict these failures, expanding previous findings.

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Area of Science:

  • Neuroscience
  • Psychology
  • Rehabilitation Medicine

Background:

  • Effort test failure (ETF) is a concern in traumatic brain injury (TBI) assessments.
  • Identifying predictors of ETF is crucial for accurate TBI evaluation and rehabilitation planning.

Purpose of the Study:

  • To investigate a wide range of factors predicting effort test failure in adults with TBI.
  • To identify demographic, psychological, injury-related, and cultural predictors of ETF.

Main Methods:

  • Archival data from 555 traumatically brain-injured adults were analyzed.
  • Logistic regression models were employed to assess predictors of effort test failure.

Main Results:

  • Compensation-seeking, low education, mood disorders, exaggerated behaviors, psychotic illness, being foreign-born, and workplace accidents significantly predicted ETF.
  • Mild TBI severity was associated with higher odds of ETF compared to very severe TBI.

Conclusions:

  • Effort test failure in TBI is associated with a broader array of predictors than previously recognized.
  • Psychological and behavioral factors play a significant role in predicting ETF, highlighting the need for comprehensive assessment.