Swanson H L
Child Dev. 1977 Mar;48(1):51-5.
A serial recognition task was used to compare performance of 2 learning disability age groups with 2- and 3-dimensional representations of nonlabeled 8-point random shapes. Age-related increases in short-term memory (STM) performance for both dimensions were found. No significant differences were found between 2- or 3-dimensional stimuli. Contrary to reports of STM performance with normal children, learning-disabled children showed no primacy effect for the 2-dimensional treatment, and second choices were not consistently correct when the first choice was incorrect, These findings were interpreted according to Flavell's notions of mediational inefficiencies.
采用序列识别任务来比较两个学习障碍年龄组在处理二维和三维无标签8点随机形状表示时的表现。发现两个维度的短期记忆（STM）表现都随年龄增长而提高。二维和三维刺激之间未发现显著差异。与正常儿童STM表现的报告相反，学习障碍儿童在二维处理中未表现出首因效应，且当第一选择错误时，第二选择并不总是正确的。这些发现根据弗拉维尔的中介低效概念进行了解释。
