Malingering and Defensiveness on the Spanish Personality Assessment Inventory: An Initial Investigation with Mostly Spanish-Speaking Outpatients

Abstract

Psychological assessments can be essentially invalidated by examinees’ intentional response styles, such as feigning (i.e., fabrication or marked overreporting of symptoms/impairment) and defensiveness (i.e., denial or minimization of symptoms/impairment). As a psychometric strength, the Personality Assessment Inventory (PAI) has established validity indicators for identifying both response styles. With the United States’ increasing ethnic and cultural diversity, predominantly Spanish-speaking individuals are now estimated in the range of 15 million persons. Unfortunately, very little research has been conducted on the Spanish-translated PAI regarding its effectiveness in clinical populations. Using a between-subjects design, a sample of mostly Spanish-speaking outpatients was randomly assigned to genuine, feigning, or defensive conditions. For feigning, PAI malingering indicators using rare symptoms strategies (i.e., Negative Impression [NIM] and Negative Distortion [NDS] scales) demonstrated moderate to large effect sizes. For defensiveness, the Defensive (DEF) index proved the most effective with a very large effect size ( M = 1.68). Different cut scores were examined to increase the clinical utility of the Spanish PAI for determining response styles.