Preliminary findings indicate that cutoff scores of ≤6 and ≤7 on RDS are not appropriate in adults with epilepsy, especially in individuals with low average IQ or below. A good example of the former would be measuring working memory capacity using the backward digit span task. Preliminary results suggest that an RDS cutoff score of ≤4 may be more appropriate in a clinically referred adult epilepsy population with a low average IQ or lower. Given the less than ideal specificity rate associated with each of these cutoff scores, together with their strong association to cognitive factors, secondary analyses were conducted to identify more optimal cutoff scores. The participant's span is the longest number of sequential digits that can accurately be remembered. Participants see or hear a sequence of numerical digits and are tasked to recall the sequence correctly, with increasingly longer sequences being tested in each trial. Findings also revealed that RDS scores were positively related to attention and intellectual functioning. A digit-span task is used to measure working memory 's number storage capacity. Previously established cutoff scores of ≤6 and ≤7 on RDS yielded a specificity rate of 85% and 77% respectively.
DIGIT SPAN PSYCHOLOGY DEFINITION TRIAL
Most participants (98%) passed Trial 2 of the Test of Memory Malingering (TOMM), achieving a score of ≥45. The sum of the scores for the Digit Span Forward, Digit Span Backward, and Digit Span Sequencing scales of the Wechsler Intelligence Scale for Children.
The cognitive psychologist George Miller (1956) referred to. Sixty-three clinically referred adults with a diagnosis of epilepsy or suspected seizures were administered the Digit Span subtest of the Wechsler Adult Intelligence Scale (WAIS-III or WAIS-IV). The digit span of most adults is between five and nine digits, with an average of about seven. Yet, it remains unclear how the task is solved cognitively. This investigation aims to determine whether these previously established RDS cutoff scores could detect suboptimal effort in adults with epilepsy. The digit span backwards (DSB) is the most commonly used test in clinical neuropsychology to assess working memory capacity. Prior research has shown that cutoff scores of ≤6 or ≤7 on Reliable Digit Span (RDS) can detect suboptimal effort across numerous adult clinical populations however, these scores have not been validated for that purpose in an adult epilepsy population. Assessment of performance validity is a necessary component of any neuropsychological evaluation.
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