Measures of self-regulation may not capture adequate variability in children with low levels of self-regulation. This can limit a measure's ability to accurately demonstrate relations with other variables. The present study addressed this issue with a revised version of the Head-Toes-Knees-Shoulders task (HTKS-R), which includes a new downward extension with reduced task demands. Preschool children (N = 180; 53% Female) enrolled in Head Start programs were tested with the HTKS-R and other self-regulation tasks at 4 time points between fall of preschool and spring of kindergarten. Results demonstrated a substantial increase in variability in children's performance on the HTKS-R compared to prior versions of the task during the fall of preschool, and significant increases in the relation between the HTKS-R and other measures of self-regulation at all 4 time points. Additionally, item factor analyses revealed that the new downward extension captured the same underlying construct as the rest of the measure and that a 1 factor solution was optimal. Together, these findings illustrate that the HTKS-R improves upon prior versions of the task increasing its utility for researchers and practitioners.

自我调节水平低的儿童可能无法获得足够的变异性。这可能会限制度量准确显示与其他变量的关系的能力。本研究通过“头-脚-膝盖-肩膀”任务（HTKS-R）的修订版解决了这个问题，该任务包括减少任务需求的新的向下扩展。在HTKS-R和其他自我调节任务下，从学前班秋季到幼儿园春季的4个时间点对参加Head Start计划的学龄前儿童（N = 180； 53％的女性）进行了测试。结果表明，与学前班秋季任务的先前版本相比，HTKS-R上儿童的表现差异显着增加，在所有四个时间点，HTKS-R与其他自我调节措施之间的关系都显着增加。此外，项目因子分析还表明，新的向下扩展与其余的度量具有相同的基本构造，并且1因子解决方案是最佳的。总之，这些发现表明HTKS-R在任务的先前版本上有所改进，从而提高了其对研究人员和从业人员的实用性。