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it has been bugging me...
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<blockquote data-quote="buddy" data-source="post: 500947" data-attributes="member: 12886"><p>No, I think you are figuring a percentage based on the age score and his age....</p><p></p><p>OK, first, in general he is saying that in terms of social communication, he is at a low end of what would be officially delayed in his opinion. Now, as a parent, are you comfortable with that big of a delay?? I assume not. And given the comparison to other test scores, is this a much lower score than other areas of development?? If so, that is the important thing to note. That he is really struggling in this area comparatively speaking.</p><p></p><p>But officially,</p><p></p><p>On standardized tests, a child(or whoever takes whatever test) gets a RAW score. That score is the actual score they get on the test (number right, or number wrong or whatever depending on the test)</p><p></p><p>That Raw Score is converted to a Standard Score, in the case of these tests, based on his actual age on the day of testing. The standard scores are based on a "normal distribution curve" simply, the mean/average score is 100. 1 SD above and below the mean are standard scores of 85-110 (about 68% of those who took the test fell within that range).... It only means they have that score on that kind of test in that area being tested...It does not mean that on other kinds of tests he will get the same. In fact it can be useful to compare one kind of test to another, and at times it is not.</p><p></p><p>IQ is an example of using a standard score... 100 is "average" 85-110 clearly within average range... and below that is still "average" for quite a way...but we start to say low average etc. Different people will say 75 is the cut off for below average scores, some say 73, some say 70 but you get the idea.</p><p></p><p>A test in an area like language when given a standard score then can be compared to the IQ score in this way... they can say, hey he has an IQ/ability of 90 but his language understanding is testing at a standard score of 65. Pretty significant difference. Well, that could mean there is a problem because he is not functioning to his potential. A language learning disability.</p><p></p><p>[Of course that means one would have to buy into IQ being a truly valid representation of ability. But that is another discussion. (For some kids it is just not a good measure in my humble opinion)]</p><p></p><p></p><p></p><p></p><p><em>Say his Standard Score was 70, that is 2 SD below the mean of 100 and most use this as a clearly below normal (it would be the 2nd percentile rank which means of 100 people taking the test, 98 would do better than that score.... do you see how that is different from a percentage?)</em></p><p></p><p>I am awful with statistics so I am sure I am much worse at explaining it.</p><p></p><p>There are limitations to using grade or age scores. They are not used frequently but are more commonly in very young kids or very very delayed kids because people can relate to ages, but the problem is... then people panic and think that the child's overall development is at that age. </p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p></p><p>He should have included more than age scores, they can cause great concern because there is a range of normal and he is saying that in his opinion he is on the borderline of that normal range and delayed. It would be easier to see that if he said he fell in the 25th percentile rank for example....you could then see that of 100 kids taking the test at that age, 25 would have the same or lower scores than your child. </p><p></p><p>Did they report the scores in any other format?</p><p></p><p>sorry I am not a good teacher in this... anyone else who can explain better feel free...</p></blockquote><p></p>
[QUOTE="buddy, post: 500947, member: 12886"] No, I think you are figuring a percentage based on the age score and his age.... OK, first, in general he is saying that in terms of social communication, he is at a low end of what would be officially delayed in his opinion. Now, as a parent, are you comfortable with that big of a delay?? I assume not. And given the comparison to other test scores, is this a much lower score than other areas of development?? If so, that is the important thing to note. That he is really struggling in this area comparatively speaking. But officially, On standardized tests, a child(or whoever takes whatever test) gets a RAW score. That score is the actual score they get on the test (number right, or number wrong or whatever depending on the test) That Raw Score is converted to a Standard Score, in the case of these tests, based on his actual age on the day of testing. The standard scores are based on a "normal distribution curve" simply, the mean/average score is 100. 1 SD above and below the mean are standard scores of 85-110 (about 68% of those who took the test fell within that range).... It only means they have that score on that kind of test in that area being tested...It does not mean that on other kinds of tests he will get the same. In fact it can be useful to compare one kind of test to another, and at times it is not. IQ is an example of using a standard score... 100 is "average" 85-110 clearly within average range... and below that is still "average" for quite a way...but we start to say low average etc. Different people will say 75 is the cut off for below average scores, some say 73, some say 70 but you get the idea. A test in an area like language when given a standard score then can be compared to the IQ score in this way... they can say, hey he has an IQ/ability of 90 but his language understanding is testing at a standard score of 65. Pretty significant difference. Well, that could mean there is a problem because he is not functioning to his potential. A language learning disability. [Of course that means one would have to buy into IQ being a truly valid representation of ability. But that is another discussion. (For some kids it is just not a good measure in my humble opinion)] [I]Say his Standard Score was 70, that is 2 SD below the mean of 100 and most use this as a clearly below normal (it would be the 2nd percentile rank which means of 100 people taking the test, 98 would do better than that score.... do you see how that is different from a percentage?)[/I] I am awful with statistics so I am sure I am much worse at explaining it. There are limitations to using grade or age scores. They are not used frequently but are more commonly in very young kids or very very delayed kids because people can relate to ages, but the problem is... then people panic and think that the child's overall development is at that age. He should have included more than age scores, they can cause great concern because there is a range of normal and he is saying that in his opinion he is on the borderline of that normal range and delayed. It would be easier to see that if he said he fell in the 25th percentile rank for example....you could then see that of 100 kids taking the test at that age, 25 would have the same or lower scores than your child. Did they report the scores in any other format? sorry I am not a good teacher in this... anyone else who can explain better feel free... [/QUOTE]
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