Jackson Case Study

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Jackson’s cognitive abilities were assessed with regard to seven broad areas of cognitive processing, through the use of the WISC-V, in addition to supplemental subtests given from the WJ-IV Cognitive. The areas of cognitive processing ability measured include crystallized intelligence, short-term memory, long-term memory, visual-spatial processing, reasoning ability, processing speed and phonemic awareness, which is an aspect of auditory processing. On the WISC-V, subtests that measure different cognitive processing abilities combine to form five index scores: Verbal Comprehension, Visual-Spatial, Fluid Reasoning, Working Memory and Processing Speed which all together make up the Full Scale IQ score (FSIQ). Jackson obtained a FSIQ of 87 …show more content…

On the first set, Jackson had to repeat the numbers back to the examiner in the correct order (memory span), while on the second set Jackson had to repeat them in reverse order (working memory). On the third set of numbers, Jackson had to sequence the numbers presented according to specific directions. Jackson scored in the Average Range on this subtest overall (Digit Span, scaled score = 9). Further analysis of his performance on this subtest found that there was a difference between his ability to use memory span versus working memory on this task, as Jackson showed minor difficulties repeating the numbers presented backwards. Also, Jackson self corrected himself on numerous times. (Digit Span Forward, scale score = 10; Digit Sequencing, scale score=10; Digit Span Backwards, scale score= …show more content…

On this measure, Jackson was shown one or more pictures for a short period of time (e.g. 3-5 seconds) and he was then asked to select the pictures they saw in order from a larger picture array. Jackson verbalized strategies to remember the pictures order shown on task. On this task, Jackson scored within the Average Range (Picture Span, scaled score = 10). The difference between Jackson 's performances on these two tasks was not unusually large, indicating that his working memory is a good estimate of his short-term memory. Jackson obtained a WMI of 97, which is ranked at the 42nd percentile and is classified as Average Range. Furthermore, Jackson’s short-term memory scores were cohesive and relatively common compared to the general population. Jackson has the ability to maintain information and reproduce it in the same sequence (Memory Span). When ask to direct his focus of attention to perform a task with manipulations, he has the ability to make combinations with the presented information (Working Memory Capacity). This index is likely to be a good summary and an adequate estimate of Jackson’s working

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