![]() Supplementary studies found no support for rival hypotheses based on anxiety, task difficulty, and race of examiner. The predictions were substantiated at a high level of significance in large representative samples of white and black children of ages 5-12 years, who were given the Wechsler Intelligence Scale for Children (Revised). The results of this investigation suggest that memory span, as measured via Digit Span Forward, Digit Span Backward, and Digit Span Sequencing, are at least. The latter prediction is derived from the hypothesis that the magnitude of racial differences should be a function of the degree to which Level 2 predominates in the cognitive demands of the particular test. Digit Span Forward - Digit Span Backward 17 18 -1 3.65 N 46.8 Digit Span Forward - Digit Span Sequencing 17 13 4 3.60 Y 13.5 Digit Span Backward - Digit Span Sequencing 18 13 5 3.56 Y 7.8 Longest Digit Span Forward - Longest Digit Span Backward 9 8 1 - 85.0 Longest Digit Span Forward - 9 6 3 - 21. This means that when the longest repeated sequence is 7, the participant reached level 7 in one of trials. In the data-file the sequences are referred to as levels. The DST-score is an indication of intelligence among other tests. Ancillary index scores are also provided for Laurie. If the child repeats the digits forwards, give a reminder that they should be reversed. The Digit Span score is the length of the longest correctly repeated sequence. For both the primary index scores and the FSIQ, scores ranging from 90 to 109 are typically considered average. The primary index scores range from 45 to 155 the FSIQ ranges from 40 to 160. The verbal span test (forward and backward digit span5) is an attention and. From the two-level theory of mental abilities (Level 1: rate learning and memory, involving little or no transformation of the input Level 2: complex cognitive processing involving transformation and mental manipulation of input) it was predicted that forward digit span (FDS) should correlate less with IQ than backward digit span (BDS), and age and race should interact with FDS-BDS, with the FDS-BDS difference decreasing as a function of age and a greater white-black difference in BDS than in FDS. The primary index scores and the FSIQ are on a standard score metric with a mean of 100 and an SD of 15. Education affected scores in most of the attention tests age was found to. They usually will have some combination of cognitive deficits involving working memory and processing speed. The study sought to use Jensen's two-level theory of mental abilities to predict some hitherto unknown or unnoticed phenomena-facts about which the theory should yield clear-cut predictions and which are not as clearly predictable from other theories, though they may receive ad hoc explanations after the fact. Your scores are strong across the board with the exception of your digit span score.
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