Sampling methods in personality pathology research: Some data and recommendations.

Area of Science:

• Psychiatry and Clinical Psychology
• Research Methodology

Background:

• Personality disorder research has evolved significantly since 1980, impacting diagnostic definitions and operationalization.
• Evaluating this research necessitates a critical examination of diverse sampling practices employed.

Purpose of the Study:

• To describe current sampling methods in personality disorder research.
• To provide recommendations for future sample design in this field.

Main Methods:

• A systematic coding of sampling practices was conducted on recent empirical articles from four key personality disorder research journals.
• Data summarized included sample size, source, screening use, study design, and demographic representation.

Main Results:

• A significant need exists for studies to explicitly define their target population and sampling frame.
• Current research often lacks clarity regarding specific recruitment procedures and sample suitability for the research question.
• Challenges in sampling low-base rate disorders and high comorbidity were identified.

Conclusions:

• Future personality disorder research requires a more rigorous and transparent approach to sampling.
• Emphasizing a process-oriented sampling strategy is crucial for enhancing the validity and generalizability of findings.
• Clearer articulation of sampling methods will improve the interpretability of personality disorder research.