What type of design focuses on the individual rather than groups in research?

• A. Meta-analysis
• B. Cross-sectional design
• C. Single-subject design
• D. Longitudinal design

Answer: (C)

Single-subject design is a research methodology that specifically concentrates on the individual participant rather than on predetermined groups. This approach allows for the examination of the effects of an intervention or treatment over time by closely observing changes in the behavior of a single subject. It utilizes repeated measures to assess the individual’s performance before and after the application of an intervention, enabling detailed analysis of individual variability and the efficacy of the treatment.

This design is particularly advantageous in the field of special education and behavior analysis, as it facilitates a tailored examination of how specific strategies can affect unique individuals with diverse learning needs. By focusing on one subject, researchers can identify patterns and causal relationships that may not be evident when looking at group data, thus providing deeper insights into individual learning processes and outcomes.

In contrast, methods like meta-analysis or cross-sectional designs tend to aggregate data across multiple subjects or groups, which may dilute the nuanced understanding of individual responses to interventions. Longitudinal design also typically examines groups over time but does not focus solely on the individual, making it less aligned with the goals of single-subject design.