Three studies are reported on the development of a four‐disc version of the Tower of London test of planning ability. The first (n = 138) involved the selection of items based on rational and empirical criteria to provide a short test of graded difficulty suitable for use with children and clinical populations. The second study (n = 480) checked the properties of the 10‐item test on a new sample and in addition examined the internal consistency and factor structure of the test. The third study (n = 61) examined the test–retest reliability of the test over a period of 1 month. The difficulty level of the test remained relatively stable from sample to sample and was sensitive to linear trend in performance from age 5 years up to 30 years. Total score did not reflect the action of a single underlying construct but rather appeared to index a number of factors. Scores were reasonably stable over the 1‐month period studied, at least for the children's sample employed. The four‐disc version is a promising method of assessing planning in children and adolescents in clinical situations.

中文翻译：

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伦敦塔的四碟版本，供临床使用。

据报道，有关伦敦塔规划能力测试的四碟版本的开发，已有三项研究报告。第一个（n  = 138）涉及基于理性和经验标准的项目选择，以提供适合儿童和临床人群的分级难度的简短测试。第二项研究（n  = 480）检查了一个新样品的10项检验的性质，此外还检验了该检验的内部一致性和因子结构。第三项研究（n  = 61）检验了测试–在1个月内重新测试的可靠性。从一个样本到另一个样本，测试的难度级别保持相对稳定，并且对从5岁到30岁的性能线性趋势敏感。总分未反映单个基础结构的作用，而是似乎对许多因素进行了索引。至少在所雇用的儿童样本中，分数在研究的1个月内相当稳定。四碟版本是一种在临床情况下评估儿童和青少年计划的有前途的方法。