The purpose of this study was to examine self-determination outcome data in the year following a one-year cluster randomized controlled trial (C-RCT) comparing the impacts of a Self-Determined Learning Model of Instruction (SDLMI) only condition to a SDLMI + Whose Future Is It? (SDLMI + WF) condition. Using multilevel B-spline model analysis with Bayesian estimation, we examined ongoing patterns of growth after the trial ended and all students were exposed to SDLMI + WF. The findings suggest that the inclusion of an additional year of outcome data provided additional insight into the impact of more intensive intervention conditions over time. Specifically, after the initial year of implementation, the SDLMI + WF condition predicted greater annual gains than the SDLMI only condition, unlike findings in the first year which reflected the opposite pattern. This evidence suggests a nonlinear growth pattern over multiple years of intervention with more intensive interventions. Implications for future research and practice are discussed.

中文翻译：

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检查 SDLMI 的影响以及它的未来？与智障学生一起度过了两年多的时间。

本研究的目的是在为期一年的整群随机对照试验 (C-RCT) 比较自决教学模型 (SDLMI) 唯一条件对 SDLMI 的影响后的一年中的自决结果数据+ 谁的未来？(SDLMI + WF) 条件。使用带贝叶斯估计的多级 B 样条模型分析，我们检查了试验结束后的持续增长模式，所有学生都接触了 SDLMI + WF。研究结果表明，将额外一年的结果数据包含在内，可以进一步了解更密集的干预条件随时间推移的影响。具体而言，在实施的最初一年之后，SDLMI + WF 条件预测的年度收益高于 SDLMI 唯一条件，与反映相反模式的第一年的调查结果不同。这一证据表明，在多年干预和更密集的干预中存在非线性增长模式。讨论了对未来研究和实践的影响。