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SPCE 630 Article Critique: Part 41. What research design was used?- The research design that was used for this study was a single-case research methodology, specially a nonconcurrent multiple-baseline design to evaluate the student outcomes. 2. Explain how phase changes were made using this design.- Visual analysis (the traditional way to evaluate single-case research) and Tau-U (a nonparametric effect size that estimates the amount of overlap between baseline and treatment phases) were used to evaluate the trend, level, and variability across participants. Vertical analysis and an analysis of the immediacy of the effect were conducted in order to further evaluate the intervention effects. Tau-U without baseline correction was also used because of concerns of biased, out-of-bounds results. 3. Was the research design appropriate to answer the research questions? Explain your answer.- This research design did demonstrate practical application or telepresence robot problem solving teleconsultation, it could have gone farther to explore the contextualization of who,