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Special Ed 101
WPPSI vs WISC IV
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<blockquote data-quote="smallworld" data-source="post: 41998" data-attributes="member: 2423"><p>I don't have any articles that statistically compare the two tests, but like you, I have heard that scores generally decrease from the WPSSI to the WISC-IV. I have also heard that IQ scores are more accurate as a child ages. Because difficult child 1 had too much variability in his performance across the four index scores, we were told by the last neuropsychologist who evaluated difficult child 1 not to look at the full-scale score but to look at the four index scores as more accurate representations of strengths and weaknesses. In addition, the neuropsychologist gave difficult child 1 a General Ability Index (GAI), a combination of the VCI and PRI that provides a global estimate of his knowledge base, reasoning and problem-solving abilities while largely factoring-out weaknesses in information processing speed and mental/attentional control. Not sure if this information is helpful, but just wanted to share our experience.</p></blockquote><p></p>
[QUOTE="smallworld, post: 41998, member: 2423"] I don't have any articles that statistically compare the two tests, but like you, I have heard that scores generally decrease from the WPSSI to the WISC-IV. I have also heard that IQ scores are more accurate as a child ages. Because difficult child 1 had too much variability in his performance across the four index scores, we were told by the last neuropsychologist who evaluated difficult child 1 not to look at the full-scale score but to look at the four index scores as more accurate representations of strengths and weaknesses. In addition, the neuropsychologist gave difficult child 1 a General Ability Index (GAI), a combination of the VCI and PRI that provides a global estimate of his knowledge base, reasoning and problem-solving abilities while largely factoring-out weaknesses in information processing speed and mental/attentional control. Not sure if this information is helpful, but just wanted to share our experience. [/QUOTE]
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