There was no difference between the groups on the DSF, said Dr. Likewise, the control group performed significantly better on the DSB. On the Digit Span total score, the control group performed significantly better than the ADHD group. DSF relies on simple short-term auditory memory with sequencing and verbal expression DSB requires more attentional demands. In DSB, the child must recall the list of digits in reverse order. The test begins with two or three numbers, increasing until the child commits an error. In DSF, a list of random numbers is read aloud and, at the end of a sequence, the child is asked to recall the items in order. The Digit Span test comprises digit span forward (DSF) and digit span backward (DSB) tasks. Kanchana Roychoudhury, a pediatrician at Flushing (N.Y.) Hospital Medical Center. Working memory allows a person to receive, store, and retrieve information on a temporary basis, said Dr. In the study, 35 children with ADHD (24 males and 11 females) and 29 healthy controls (6 males and 23 females) were asked to perform the Digit Span test, which assesses working memory. Further studies are required to examine the effects of age and output-modality on these tasks.PHILADELPHIA – Children with attention-deficit/hyperactivity disorder performed worse than children without the disorder on tests of working memory–an important factor in learning and academic success, according to the results of a case-controlled study of 64 children aged 7–12 years. Discussion & Conclusions: The current results were consistent with those from Waters and Caplan (2003), reporting composite measure increased stabilities and reliabilities for the working memory measures and all of the working memory tasks loaded onto a single factor. A principal component analysis revealed that the one-factor solution accounted for 66% of the total variance for four different working memory pointing tasks. As short-term memory measures, digit and word forward pointing span measures were highly correlated (r=0.79). Concurrent validity results suggested that the pointing version of the digit span measures shared only 25~40% of the total variance with the standardized measure of the digit span-recall. However, test-retest reliabilities increased up to 0.86 when a composite measure was used with a combination of at least two different tasks. Results The test-retest reliability results revealed that the range of Pearson’s correlation coefficients was 0.43~0.77. Fifty-five normal individuals participated in the study and performed all of the tasks. An alphabet pointing span task and a subtract-2 pointing span measure were developed as working memory tasks. Methods Digit forward and backward pointing span measures were developed by adapting the most commonly used digit forward/backward recall tasks to pointing measures. The specific aim of the study was to examine psychometric properties such as test-retest reliability, concurrent and construct validity, and internal item consistency in newly developed pointing span measures. The current study developed pointing span measures that do not require verbal output and thus can be used to assess short-term and working memory capacities in special populations with verbal-output deficits. However, there are limitations to the employment of short-term and working memory tasks developed for assessing normal cognitive processing for the evaluation of speech and/or language-impaired clinical populations. The Reliability and Validity of Short-term and Working Memory Pointing Tasks Developed for Clinical Populations with Speech and Language DisordersĬopyright ©2011 The Korean Academy of Speech-Language Pathology and Audiologyīackground & Objectives Short-term and working memory capacity theories have gained considerable attention as underlying cognitive mechanisms, deficiencies in which may account for language processing difficulties in individuals with speech and language disorders.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |