Nikravesh Maryam, Jafari Zahra, Mehrpour Masoud, Kazemi Roozbeh, Amiri Shavaki Younes, Hossienifar Shamim, Azizi Mohamad Parsa
Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
Department of Basic Sciences in Rehabilitation, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
Med J Islam Repub Iran. 2017 Sep 11;31:61. doi: 10.14196/mjiri.31.61. eCollection 2017.
The paced auditory serial addition test (PASAT) was primarily developed to assess the effects of traumatic brain injury on cognitive functioning. Working memory (WM) is one of the most important aspects of cognitive function, and WM impairment is one of the clinically remarkable signs of aphasia. To develop the Persian version of PASAT, an initial version was used in individuals with aphasia (IWA). In this study, 25 individuals with aphasia (29-60 years) and 85 controls (18-60 years) were included. PASAT was presented in the form of recorded 61 single-digit numbers (1 to 9). The participants repeatedly added the 2 recent digits. The psychometric properties of PASAT including convergent validity (using the digit memory span tasks), divergent validity (using results in the control group and IWA group), and face validity were investigated. Test-retest reliability was considered as well. The relationship between the PASAT and digit memory span tests was moderate to strong in the control group (forward digit memory span test: r= 0.52, p< 0.0001; backward digit memory span test: r = 0.48, p< 0.0001). A strong relationship was found in IWA (forward digit memory span test: r= 0.72, p< 0.0001; backward digit memory span test: r= 0.53, p= 0.006). Also, strong testretest reliability (intraclass correlation= 0.95, p< 0.0001) was observed. According to our results, the PASAT is a valid and reliable test to assess working memory, particularly in IWA. It could be used as a feasible tool for clinical and research applications.
听觉序列加法测验（PASAT）最初是为评估创伤性脑损伤对认知功能的影响而开发的。工作记忆（WM）是认知功能最重要的方面之一，而WM损伤是失语症临床上显著的体征之一。为了开发波斯语版的PASAT，最初版本在失语症患者（IWA）中使用。在本研究中，纳入了25名失语症患者（29 - 60岁）和85名对照者（18 - 60岁）。PASAT以录制的61个一位数数字（1至9）的形式呈现。参与者反复将最近的两个数字相加。研究了PASAT的心理测量特性，包括收敛效度（使用数字记忆广度任务）、区分效度（使用对照组和IWA组的结果）和表面效度。还考虑了重测信度。在对照组中，PASAT与数字记忆广度测试之间的关系为中度至强相关（顺向数字记忆广度测试：r = 0.52，p < 0.0001；逆向数字记忆广度测试：r = 0.48，p < 0.0001）。在IWA中发现了强相关（顺向数字记忆广度测试：r = 0.72，p < 0.0001；逆向数字记忆广度测试：r = 0.53，p = 0.006）。此外，观察到了强重测信度（组内相关系数 = 0.95，p < 0.0001）。根据我们的结果，PASAT是评估工作记忆的有效且可靠的测试，特别是在IWA中。它可以用作临床和研究应用的可行工具。
