Chiat Shula, Roy Penny
Department of Language and Communication Science, City University, Northampton Square, London EC1V 0HB, England.
J Speech Lang Hear Res. 2007 Apr;50(2):429-43. doi: 10.1044/1092-4388(2007/030).
To determine the psychometric properties of the Preschool Repetition (PSRep) Test (Roy & Chiat, 2004), to establish the range of performance in typically developing children and variables affecting this performance, and to compare the performance of clinically referred children.
The PSRep Test comprises 18 words and 18 phonologically matched nonwords systematically varied for length and prosodic structure. This test was administered to a typical sample of children aged 2;0-4;0 (n = 315) and a clinic sample of children aged 2;6-4;0 (n = 168), together with language assessments.
Performance in the typical sample was independent of gender and socioeconomic status but was affected by age, item length, and prosodic structure and was moderately correlated with receptive vocabulary. Performance in the clinic sample was significantly poorer but revealed similar effects of length and prosody and similar relations to language measures overall, with some notable exceptions. Test-retest reliability and interrater reliability were high.
The PSRep Test is a viable and informative test. It differentiates within and between typical and clinic samples of children and reveals some unusual profiles within the clinic sample. These findings lay the foundations for a follow-up study of the clinic sample for investigation of the predictive value of the test.
确定学前重复（PSRep）测试（Roy和Chiat，2004年）的心理测量特性，确定正常发育儿童的表现范围以及影响该表现的变量，并比较临床转诊儿童的表现。
PSRep测试包括18个单词和18个在长度和韵律结构上系统变化的语音匹配非单词。该测试被施用于2;0至4;0岁的典型儿童样本（n = 315）和2;6至4;0岁的临床儿童样本（n = 168），同时进行语言评估。
典型样本中的表现与性别和社会经济地位无关，但受年龄、项目长度和韵律结构的影响，并且与接受性词汇量有中度相关性。临床样本中的表现明显较差，但总体上显示出长度和韵律的类似影响以及与语言测量的类似关系，不过有一些显著例外。重测信度和评分者间信度很高。
PSRep测试是一项可行且信息丰富的测试。它能够区分正常儿童样本和临床样本内部及之间的差异，并揭示临床样本中的一些异常情况。这些发现为对临床样本进行后续研究以调查该测试的预测价值奠定了基础。
