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The number of individuals who obtained T-scores >60 (i.e., one standard deviation above the mean in the standardization sample) was counted on each dimension and sum score.
There are gender and age differences, but in general the standardization sample means fluctuate around a value of 3.0, and the majority of standard deviations fall between.50 and.85.
Before looking at the standardization sample, we hypothesized that Working Memory would be a better discriminating factor than Processing Speed for gifted students.
For the gifted population, the skills required in the Verbal Comprehension factor are traditionally the strongest indicators of giftedness and this was found to be true with the standardization sample.
Importantly, although the standardization sample was younger than the ASD parents, they exhibited a similar range of performance on the two tasks.
The patient's score and the cutoff in the standardization sample for each test are shown.
Similar(45)
Full-Scale IQ scores at 6 years of age were correlated with maternal IQ scores (r = 0.52, p < 0.001), and with the children's own scores on the Stanford-Binet IV, previously administered at 3 and 5 years of age (Canfield et al. 2003a) (r = 0.74, p < 0.001; and r = 0.82, p < 0.001, respectively), at magnitudes consistent with the standardization samples for these instruments (Sattler 2001).
Colom and Lynn [37] presented new evidence for the theory from the Spanish standardization sample of the fifth edition of the Differential Aptitude Test (DAT).
To place all parameters on the original scale, the subset of the original standardization sample from UNC served as the reference population (calibration scale: mean = 0, SD =1; reporting scale: mean = 50, SD = 10).
Finally, the IQ of the control participants (mean = 119), while not strictly a limitation, should be mentioned, because it is worth noting that previous population-based studies have indicated a higher mean IQ level in the Denver metropolitan region than in the national standardization sample for the Wechsler scales [ 92].
The original standardization sample for the PROMIS Pediatric scales included 3,048 children; a detailed description of the sample has been provided [ 3].
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