Methodological standards in single-case experimental design: Raising the bar.

Area of Science:

• Developmental Disabilities Research
• Disability Studies
• Evidence-Based Practices

Background:

• Single-case experimental designs (SCEDs) are crucial for evaluating interventions for individuals with disabilities, especially rare conditions.
• The increasing acceptance of SCEDs has led to greater scrutiny of their methodological rigor.
• A growing body of literature addresses the need for improved quality in SCED research.

Purpose of the Study:

• To review the historical development of methodological quality standards in SCED research.
• To synthesize existing recommendations for enhancing SCED methodological quality.
• To provide actionable guidance for researchers designing SCED studies.

Main Methods:

• Literature synthesis of recent trends and expert recommendations in SCED methodology.
• Analysis of critiques and proposed standards for SCED research quality.
• Identification of essential and aspirational standards for SCED design.

Main Results:

• SCED research is increasingly accepted but faces methodological quality critiques.
• Numerous expert scholars and institutions have proposed recommendations for improving SCED quality.
• Key areas for improvement include experimental rigor and consideration of applied research contexts.

Conclusions:

• Researchers are urged to elevate the methodological quality of their SCED experiments.
• Particular attention should be paid to the applied nature of SCED research.
• Adherence to enhanced methodological standards will strengthen the evidence base for interventions in developmental disabilities.