Confronting patients about insufficient effort: the impact on subsequent symptom validity and memory performance

Area of Science:

• Neuropsychology
• Clinical Psychology

Background:

• Symptom validity tests (SVTs) assess effort in neuropsychological evaluations.
• Lack of guidelines exists for managing non-valid SVT results.

Purpose of the Study:

• To investigate the impact of confronting patients with non-valid SVT scores on subsequent performance.
• To determine if immediate intervention affects symptom validity and memory test results.

Main Methods:

• Archival data from 507 adults with multiple sclerosis (MS) were analyzed.
• Patients completed the Victoria Symptom Validity Test (VSVT), Wechsler Memory Scale (WMS III), and Beck Depression Inventory (BDI II).
• A subgroup (CONF group) was confronted after a non-valid VSVT and retested; a control group (N-CONF group) was not.

Main Results:

• 68% of the confronted group achieved valid VSVT scores upon re-administration.
• The confronted group showed memory performance comparable to those with initially valid scores.
• The non-confronted group exhibited significantly lower memory scores compared to the valid group.

Conclusions:

• Immediate confrontation following a non-valid SVT is an effective intervention in clinical settings.
• This intervention can improve subsequent symptom validity and memory test performance.
• Empirical support is provided for managing inadequate effort during neuropsychological evaluations.