mrepo:topics:childhoodcognitiveability

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mrepo:topics:childhoodcognitiveability [02/03/2018 @ 11:38] – adammooremrepo:topics:childhoodcognitiveability [13/11/2023 @ 16:09] – root
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-Innervisions Festival +==== Childhood Cognitive Ability ==== 
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-<HTML> +The cognitive tests administered in childhood and adolescence in NSHD were all ones of intellectual ability; tests of functional performance (memory, speed of processing, executive function, etc.) were first given at [[questionnaires:1989|age 43 years]]
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-Childhood Cognitive Ability +
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-The cognitive tests administered in childhood and adolescence in NSHD were all ones of intellectual ability; tests of functional performance (memory, speed of processing, executive function, etc.) were first given at <html><a href="https://secure.ctu.mrc.ac.uk/lha_nshd/members/1989.html"></html>age 43 years<html></a><br></html>+
  
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-Four tests devised by the National Foundation for Educational Research (NFER) were used: <html><br></html> 1.  Reading Comprehension (selecting appropriate words to complete 35 sentences;<html><br></html> 2. Word Reading (ability to read and pronounce 50 words; <html><br></html> 3. Vocabulary (ability to explain the meaning of 50 words; <html><br></html> 4. Picture Intelligence, consisting of a 60-item non-verbal reasoning test.<html><br></html>+Four tests devised by the <html><b>National Foundation for Educational Research</b></html> (NFER) were used: <html><br></html> 1. Reading Comprehension (selecting appropriate words to complete 35 sentences)<html><br></html> 2. Word Reading (ability to read and pronounce 50 words) <html><br></html> 3. Vocabulary (ability to explain the meaning of 50 words) <html><br></html> 4. Picture Intelligence (a 60-item, non-verbal reasoning test)<html><br></html>
  
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-Four NFER tests were used: <html><br></html> 1. a verbal and non-verbal test, where participants were asked to select an appropriate word or shape to complete 80 different series, yielding scores for Verbal Intelligence and Non-verbal Intelligence; <html><br></html> 2. an arithmetic test comprising 50 addition, multiplication, subtraction and division sums, and two tests previously used at age 8 years; <html><br></html> 3. Word Reading;<html><br></html> 4. Vocabulary.<html><br></html>+Four NFER tests were used: <html><br></html> 1. A verbal and non-verbal test, where participants were asked to select an appropriate word or shape to complete 80 different series, yielding scores for Verbal Intelligence and Non-verbal Intelligence <html><br></html> 2. An arithmetic test comprising 50 addition, multiplication, subtraction and division sums, and two tests previously used at age 8 years <html><br></html> 3. Word Reading<html><br></html> 4. Vocabulary<html><br></html>
  
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-At age 15 three tests were administered.<html><br></html> 1. the Heim Group Ability Test AH4 (Heim, 1970), a 130-item test requiring shape matching and selection, and verbal and number problems, yielding scores for Verbal Intelligence and Non-verbal Intelligence; <html><br></html> 2. the Watts-Vernon Reading Test, a 35-item test of reading comprehension requiring the participant to select an appropriate word to complete a sentence; <html><br></html> 3. a 47-item mathematics test, requiring the use of arithmetic, geometry, trigonometry and algebra.<html><br></html>+ At age 15 three tests were administered:<html><br></html> 1. The Heim Group Ability Test AH4 (Heim, 1970), a 130-item test requiring shape matching and selection, and verbal and number problems, yielding scores for Verbal Intelligence and Non-verbal Intelligence <html><br></html> 2. The Watts-Vernon Reading Test, a 35-item test of reading comprehension requiring the participant to select an appropriate word to complete a sentence <html><br></html> 3. A 47-item mathematics test, requiring the use of arithmetic, geometry, trigonometry and algebra<html><br></html>
  
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-Scores for all of these tests are also available in normalised form for approximation to a standard IQ score.<html><br></html>+Scores for all of these tests are also available in <html><b>normalised</b></html> form for approximation to a standard IQ score.<html><br></html>
  
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-Since these cognitive tests are highly inter-correlated, simple global scores can be calculated by summing the scores at each age.  If this is done it is recommended that each score is first standardised to a z score to allow for the varying ranges across the raw test scores, in the following way:<html><br></html>+Since these cognitive tests are highly inter-correlated, simple global scores can be calculated by summing the scores at each age.  If this is done it is recommended that each score is <html><b>first standardised</b></html> to a z-score to allow for the varying ranges across the raw test scores, in the following way:<html><br></html>
  
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-Subtract the mean score (based on the analytic sample) from the individual score, then divide the difference by the standard deviation of the mean score.+Subtract the mean score (based on the analytic sample) from the individual score, then divide the difference by the standard deviation of the mean score
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-Sum the resulting z scores, then re-standardise this total score.+Sum the resulting z-scores, then re-standardise this total score
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-<HTML> +=== Obtaining the standard childhood cognitive ability variables ===
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 +  * You can obtain a list of the standard topic variables to use in an NSHD data sharing request by selecting the link at the end of this page.\\ 
 +  * The XML version of the link can be sent to the LHA as part of a data sharing request.\\ 
 +  * Simply use your browser's //Save As// facility to save the list of variables to a file on your computer.\\ 
 +  * You can then [[mrclha.swiftinfo@ucl.ac.uk|email]] the XML version to us in support of your application, or when you fill in the [[nshd:forms|data access application form]] and it asks which variables you need, mention the 'childhood cognitive ability standard basket' along with any others.
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 +**Please Note** that the childhood cognitive ability standard basket only contains the three summary, standardised //**COG..H**// variables, which are the most commonly-used covariates on this topic. For the full, detailed variable list please investigate this subject on [[skylark:skylark|Skylark]]. 
  
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 +<html><b></html>{{mrepo:childhood_cognition.pdf|More information}} <html></b></html>is available on this topic - including the main variable naming conventions and some value labels.
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 +[[https://skylark.ucl.ac.uk/Sparrow/search/html/keyword/mrepo:topics:childhoodcognitiveability | HTML version of the standard variables to view]]
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-  <td><small><img style="width: 11px; height: 11px;" alt="arrow" src="./Childhood Cognitive Ability_files/link_icon.gif"><a href="https://secure.ctu.mrc.ac.uk/lha_nshd/members/childhood.html">Childhood 
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-  <td><small><img style="width: 11px; height: 11px;" alt="arrow" src="./Childhood Cognitive Ability_files/link_icon.gif"><a href="https://secure.ctu.mrc.ac.uk/lha_nshd/members/Adult_Health.html">Adult Physical 
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-  <td><small><img style="width: 11px; height: 11px;" alt="arrow" src="./Childhood Cognitive Ability_files/link_icon.gif"><a href="https://secure.ctu.mrc.ac.uk/lha_nshd/members/Adult_Wellbeing.html">Adult Mental Function &amp; Wellbeing</a></small></td> 
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-  <td><img style="width: 11px; height: 11px;" alt="arrow" src="./Childhood Cognitive Ability_files/link_icon.gif"><a href="https://secure.ctu.mrc.ac.uk/lha_nshd/members/Lifetime.html"><small>Lifetime 
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-  <td><small><img style="width: 11px; height: 11px;" alt="arrow" src="./Childhood Cognitive Ability_files/link_icon.gif"><a href="https://secure.ctu.mrc.ac.uk/lha_nshd/members/Biological.html">Biological 
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-<html><a href="https://secure.ctu.mrc.ac.uk/lha_nshd/members/index.html"></html>Homepage<html></a></html> | <html><a href="http://www.nshd.mrc.ac.uk/"></html>LHA-NSHD Website (Public)<html></a></html> 
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