Differential item functioning in a Spanish translation of the Beck Depression Inventory

Area of Science:

• Psychiatry
• Cross-cultural Psychology
• Psychometrics

Background:

• Culturally compatible depression measures are essential for accurate mental health assessments.
• Existing depression scales often lack cultural validation during translation.
• The Beck Depression Inventory (BDI) is widely used but requires cultural bias assessment.

Purpose of the Study:

• To evaluate the cultural equivalence of the Beck Depression Inventory (BDI) between English and Spanish-speaking patients.
• To identify potential cultural biases in the BDI items.
• To inform the culturally sensitive use of the BDI in diverse populations.

Main Methods:

• A sample of 292 medical outpatients completed either an English or a Spanish version of the BDI.
• Differential Item Functioning (DIF) analysis using the Mantel Haenszel Approach was employed.
• The analysis focused on ordered response categories to detect bias between ethnic groups.

Main Results:

• Significant cultural bias was detected in the BDI items between Spanish-speaking Latinos and English-speaking patients.
• Latinos were more likely to endorse items related to tearfulness and punishment.
• Latinos were less likely to endorse items related to inability to work, irrespective of depression severity.

Conclusions:

• The BDI exhibits cultural bias, impacting its equivalence across different linguistic and cultural groups.
• Recommendations for culturally informed interpretation and application of the BDI are necessary.
• Further research into culturally adapted depression assessment tools is warranted.