Feb 11 - Psychological Assessment Notes February 11th 2008...

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Psychological Assessment Notes: February 11 th 2008 Standards for Educational and Psychological Testing (1999)- Manual divided into 3 sections: Test Construction, Evaluation, Documentation Fairness in Testing Testing Applications 1. Test Construction, Evaluation, Documentation is it valid? (24 separate standards) is it reliable? (20 separate standards) looks at scales, norms, and score compatibility Scales - The type of measurement and what operations you can perform with it…The scales are nominal, ordinal, interval, and ratio. Norms - refer to the data that are obtained from reference group…How do we pick reference groups? Random sampling- everyone in the population has an equal chance of being in the sample.. You also must look at what needs to be done to create a good norm to compare against Co-norming- using the same reference group for multiple norms. For example, when the new WAIS-IV becomes available they may have co-normed it with the WTAR, giving them the same norms. Score Compatibility - How do we compare a raw score to something with meaning? Converting raw scores into a standard score helps to compare data. Standard scores have a known mean and standard deviation. Example- Z score, which has a mean of 0, and a
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  • Winter '08
  • Swihart
  • Wechsler Adult Intelligence Scale, Wechsler Adult Intelligence, Intelligence Scale, Dr. Lawrence Moore, separate standards, Testing Testing Applications

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