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15 Cards in this Set
- Front
- Back
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Age equivalent
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a very general score that is used to compare the performance of children at the same age with one another **these scores seem to be useful in presenting information but are misleading
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chronological age
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the child's actual age (years, months, and days)
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Data
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information gathered and collected during the assessment process
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Deciles
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division of scores into tenths or ten equal units. for example, the sixth decile is the point at which 60% of the scores fall below (division of the bell curve into ten deciles is common)
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Grade equivalent
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a very general score that is used to compare the performance of children in the same grade with one another **these scores seem to be useful in presenting information but are misleading
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percentile rank
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a score indicating the percentage of people or scores that occur at or below a given score. if you have a percentile rank of 75, this means that you did as well or better than 75% of the students in the class **major drawback to percentiles involves the unequal length of percentile units
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Protocol
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the booklet where responses and scores are recorded
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Quartiles
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division of scores into four quarters. the first quartile marks the lower quarter or bottom 1/4 of all scores (dividing bell curve into quartiles is common)
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Raw score
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the raw score indicates the number of items correctly answered on a given test. in all cases, it is the first score a teacher obtains when interpreting data. (i.e. 15 out of 20 words correct on spelling test)
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Scaled scores
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a conversion of a student's raw score on a test to a comparison scale that allows for a numerical comparison between students **most scaled scores have a mean of 50 and a standard deviation of 10
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Standard score
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a score that has been transformed to fit a normal curve, with a mean and standard deviation that remain the same across ages. **most standard scores have a mean of 100 and a standard deviation of 15 (i.e. IQ test)
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Stanine
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an abbreviation for standard nines, it is a type of standard score that has a mean of 5 and a standard deviation of 2. scores range from 1 to 9. bell curve is divided into 9 stanines
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t-scores
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another way to express test performance. t-scores have a mean of 50 with a standard deviation of 10
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z-score
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indicates how many standard deviations a score is above or below the mean. A z-score is a standard score distribution with a mean of 0 and a standard deviation of 1.
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THIS IS THE BELL CURVE WITH COMMON SCALING
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see page in notebook. important to know though.
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