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51 Cards in this Set
- Front
- Back
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_____ is the number of items correctly answered on a given test. This has not been weighted, transformed or statistically manipulated
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Raw Score
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This type of measurement is a way to categorize. There is not score to this measurement. What type of measurement is this?
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Nominal scale of measurement
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The type of measurement ranks scores in order from rank. What is it?
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Ordinal scale of measurement
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This type of measurement is where equal differences in scores represent equal differences in the amount of property measure. This number can go below zero if needed. What is it?
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Interval scale of measurement
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This type of measurement has all the properties of an interval scale with the additional property of zero. This number cannot go below zero. What is it?
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Ratio scale of measurement
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Large sets of data are organized and understood through methods known as _____
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Descriptive statistics
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_____ begins with a raw score. You then use the raw score to find other scores
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Descriptive statistics
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The measures of central tendency are ?
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Mean, median, mode
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A _____ represents the way test scores would fall if a test was given to every single student of the same age group.
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Normal distribution
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The _____ occurs most often in a set of numbers
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Mode
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What is the name we give to a distribution that has two modes?
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Bimodal distribution
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What is the name we give to a distribution that has three modes?
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Multimodal distribution
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A _____ is how often a score occurs in a set of data
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Frequency distribution
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What is a perk of frequency distribution?
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Gives us a much easier way to look at data
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When setting up a frequency distribution, always make sure to rank the data from _____ to _____ or _____ to _____
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Least to greatest
Greatest to least |
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The middle score is called the _____
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Median
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The _____ is the average
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Mean
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The _____ is the most affected by extreme outlier scores
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Mean
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The _____ is the difference between the high score and the low score
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Range
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100 - 55 = 45
In this equation, 45 is the _____ |
Range
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The _____ tells you the spread of scores within a distribution
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Variance
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What are the 5 steps to finding the variance?
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1) Find the mean
2) Subtract the mean from each number in the set 3) Square each difference 4) Find the sum of each of the squares 5) divide that number by the total number of scores |
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The _____ is the spread of scores around the mean and is one unit above or below the score of 100.
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Standard deviation
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To find the standard deviation, you must take the _____ of the variance
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square root
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more than ____% of the scores fall within one standard deviation above or below the mean on a bell curve
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68%
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Gifted students are usually _____ deviations above the mean, whereas students with mental retardation are usually _____ standard deviations below the mean.
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2
2 |
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if something is negatively skewed, how will the graph look?
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Draw with hand
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If something is positively skewed how will the graph look?
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Draw with hand
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A _____ is a score indicating the percentage of people or scores that occur at or below a given score.
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Percentile Rank
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The ____ percentile normally signifies the average ranking
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50th
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If you are part of the 99th percentile, are you smart?
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Yes
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_____ divide scores into fourths
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Quartiles
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_____ divide scores into tenths
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Deciles
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Name the steps to calculating percentiles
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1) Take total number of test scores LESS THAN the score that the student received.
2) Divide that number by the total number of test scores Multiply by 100 |
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A _____ indicates how many standard deviations a score is above or below the mean. This is the standard score distribution with a mean of 0 and a standard deviation of 1.
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Z score
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How do you find a Z score?
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take test score, subtract by mean score, divide by standard deviation
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A _____ is another way to express test performance. These scores have a mean of 50 with a standard deviation of ten.
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T score
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How do you find a T score?
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50+ 10z= T score
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A _____ is a type of standard score that has a mean of 5 and an SD of 2. These scores can range from 1-9.
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Stanine
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Any time you test a child, perhaps the most important piece of information you must obtain is the child's age at the time of testing. This is known as the _____
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Chronological age
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Work on examples of finding a child's chronological age
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DONT FORGET
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A _____ is a score that has been transformed to fit a normal curve
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Standard score
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For each subtest, a student receives a raw score. This raw score is often transformed into a ______
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Scaled score
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A _____ is a conversion of a student's raw score on a test to a common scale that allows for a numerical comparison between students.
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Scaled score
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In many cases, scaled scores range from _____ to _____ with a mean of _____
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1-19
10 |
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An _____ is a very general score that is used to compare the performance of children at the same grade with one another
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Grade equivalent
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Grade equivalents are always given in _____ and _____
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years and months
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Example of grade equivalent:
What does it mean if a child gets a grade equivalent score of 3.5 |
The student is performing as well as the average students in the third grade, 5th month
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A _____ is a very general score that is used to compare the performance of children at the same age with one another.
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Age equivalent
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Age equivalent scores are almost always given in _____ and _____
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Years and months
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Example of Age equivalent:
What does it mean if a child gets an age equivalent score of 11-5? |
The student is performing as well as the average 11 year, 5 month old child.
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