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The time-lapse animation compresses 15 years of brain development (ages 5-20) into just a few seconds. Red indicates more gray matter, blue less gray matter. The changes in color from yellow/red to blue show the pruning process (source: NIMH). Mental age is a concept related to intelligence. It looks at how a specific individual, at a specific ...
The WAIS-IV measure is acceptable for use with people who are 16–90 years of age. For people younger than 16, the Wechsler Preschool and Primary Scale of Intelligence (WPPSI, 2½–7 years, 7 months) and the Wechsler Intelligence Scale for Children (WISC, 6–16 years) are used. [14]
An overall score above the cutoff point, sometimes referred to as a positive score, indicates need for further assessment. The cutoff score for children older than 6 years old is 28. [4] For children younger than 6 years old, four items that pertain to school are excluded. As a result, the range of scores is lower and the cutoff score is ...
Age appropriateness refers to people behaving as predicted by their perspective timetable of development. The perspective timetable is embedded throughout people's social life, primarily based on socially-agreed age expectations and age norms.
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A 1996 statement by the American Psychological Association gave about 0.45 for children and about .75 during and after adolescence. [15] A 2004 meta-analysis of reports in Current Directions in Psychological Science gave an overall estimate of around 0.85 for 18-year-olds and older. [16]
There is some overlap between tests: children aged 6 years 0 months through 7 years 7 months can complete the WPPSI or the WISC; children aged 16 can complete the WISC-V or the WAIS-IV. Different floor effect and ceiling effect can be achieved using the different tests, allowing for a greater understanding of the child's abilities or deficits ...
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