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This document is for professional psychologists who are trained in clinical assessment of cognitive function in adults.
Its purpose is to provide guidance and highlight key issues in the assessment of effort during cognitive testing in adults in clinical settings. In addition, it seeks to identify issues relevant to the interpretation of findings and, finally, to provide further reading and highlight areas for future research.
Why is testing of effort an issue?
Is sub-optimal effort common?
Can sub-optimal effort be detected?
The use of embedded measures in conventional psychometric tests
What is optimal versus practical assessment?
What to do if detecting poor effort
Interpretation of failure on effort tests
The assessor-testee interface: What should the testee be told?
Contextual and situational factors
Threats to effort testing: A cautionary note
Are there exceptional cases?
Cultural and ethnic issues
Future research needs
Appendix 1: Explanation of terms
Appendix 2: Statistical Issues
Appendix 3: Commonly used purpose-designed tests of effort
Appendix 4: Iatrogenic factors