Problem: Single-case and between-subjects approaches both aim to uncover causal links, yet they rely on very different strategies to judge whether intervention works. Privitera (2023) explains that a between-subjects design pits one group against another, often an experimental group against a control group, which makes this design especially valuable when researchers want results that can be extended to broader populations. In contrast, single-case designs can repeatedly measure one participant or a small number of participants over time, with each individual serving as their control (Maggin et al., 2018). Implementing this approach allows researchers to determine whether an intervention produces a meaningful behavioral change but has also limited generalizability beyond the participants that are being studied. The multiple-baseline design described by Maggin et al. (2018) is a great example. In this research design, it evaluates an intervention across different settings or behaviors while introducing the treatment at different times. Researchers test the hypotheses by examining whether changes occur only after implementing the intervention. showing a functional relationship. I believe that a single-case design was the best choice here because it provides strong proof that the intervention works for individual students and lets researchers track progress through observations, even when there aren't many samples available (Maggin et al., 2018) write friendly response with in text citation. Need Assignment Help?