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Letter-Number Sequencing (secondary) – children are provided a series of numbers and letters and asked to provide them to the examiner in a predetermined order. The WMI is a measure of working memory ability. The PSI is derived from the Coding and Symbol Search subtests. The Processing Speed subtests are as follows:
The WAIS-5 introduces several new subtests, particularly in the working memory domain, with Digit Span Sequencing and Running Digits now being the core subtests that compose the Working Memory Index. Digit Span Forward, Digit Span Backward, Spatial Addition, Symbol Span, and Letter-Number Sequencing may also be used to construct the Expanded ...
Using the ACS software, examiners can compare performance on these two subtests with performance on the WAIS-IV and WMS-IV, which allows for a more integrated assessment of functioning. In 2011, Crawford et al. made available free computer software that allows the assessor to calculate important supplementary values.
In the planned connections (a variation of Trails test) subtest the child is instructed to connect numbers in sequence that appear in a quasi-random order (e.g., 1–2–3, etc.). For these two tests, the child connects numbers and letters in sequential order, alternating between numbers and letters (e.g., 1-A-2-B, etc.).
In the second part, thirteen of the dots are numbered from 1 to 13 and twelve are given the letters from A to L; the subject must connect the dots in order while alternating letters and numbers (1–A–2–B–3–C ...) as fast as possible without lifting the pen from the paper. [6]
A digit-span task is used to measure working memory's number storage capacity. 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. The participant's span is the longest number of sequential digits that can accurately be remembered.
Rapid automatized naming (RAN) is a task that measures how quickly individuals can name aloud objects, pictures, colors, or symbols (letters or digits). Variations in rapid automatized naming time in children provide a strong predictor of their later ability to read, and is independent from other predictors such as phonological awareness, verbal IQ, and existing reading skills. [1]
The battery consists of 10 subtests and is used for various professional, medical, military, government, law enforcement and employment settings. The test-retest reliability based on timed performance correlates with values of 0.95 for the verbal section, 0.96 for the performance section and 0.97 for the full scale. [1] [2] [3] [4]