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Performance Invalidity Base Rates Among Healthy Undergraduate Research Participants.

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Summary
This summary is machine-generated.

Suboptimal effort in healthy college students is less common than previously thought, with current studies showing lower rates of performance invalidity. However, monitoring effort remains valuable in neuropsychological research with this population.

Keywords:
Base ratesEffortPerformance Validity TestsUndergraduate students

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Area of Science:

  • Neuropsychology
  • Cognitive Psychology

Background:

  • Previous research reported high rates of suboptimal effort (30.8%-55.6%) in healthy undergraduate students, questioning data validity.
  • Subsequent studies indicated significantly lower base rates of performance invalidity, ranging from 2.6% to 12%.

Purpose of the Study:

  • To replicate and extend previous work on base rates of suboptimal effort in healthy undergraduate students.
  • To assess the prevalence of performance invalidity in a sample of 108 healthy undergraduates using multiple validity measures.

Main Methods:

  • Administered the Dot Counting Test, Victoria Symptom Validity Test, and Word Memory Test to 108 healthy undergraduates.
  • Assessed neuropsychological test performance and evaluated effort using established performance validity tests (PVTs).

Main Results:

  • At initial testing, 8.3% of the sample scored below cutoffs on at least one PVT.
  • At follow-up (mean interval = 34.4 days), 3.7% were classified as invalid, indicating low base rates of suboptimal effort.

Conclusions:

  • Current findings suggest performance invalidity base rates in healthy college students are lower than initially reported by An et al. (2012).
  • While less prevalent than previously suggested, suboptimal effort can still occur (up to 12%), underscoring the value of incorporating effort measures in neuropsychological research with student samples.