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39 Cards in this Set
- Front
- Back
What are the two most commonly used scales in education?
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Ordinal; Equal Interval
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What kind of scale does this demonstrate: Abner, Allison, Andy, Astor
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Nominal
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What kind of scale does this demonstrate?
Abner: 4'9" Allison: 5'0 Andy: 5'3" Astor: 5'5" |
Equal Interval
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What kind of scale does this demonstrate:
Abner: Intermediate Allison: Intermediate Andy: Above Average Astor: Excellent |
Ordinal
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Mathematical operations can be performed on which of the scales of measurements?
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Equal-interval
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Name the three measures of central tendancy
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average (mean), mode, median
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The distance between each score.
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Variance
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Symmetry of the distribution of scores
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Skew
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The rate in which a curve rises and falls
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Kurtosis
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Most frequently obtained score
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Mode
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Center point of the scores when ordered from low to high - the point in a distribution above which at 50 percent of the test takers and below which are 50 percent of the test takes
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Median
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Arithmetic average
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Mean
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How the scores are spread out above and below the average score
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Dispersion
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What are the three measures of dispersion?
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range, variance, and standard deviation
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The distance between the two extremes scores of high and low (+1)
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Range
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Which two correlation coefficients have the best predictive value?
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1.00; -1.00
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True/False: Correlational data can't be used to draw a conclusion about causality.
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True
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(# correct/# possible) x 100
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Percent correct
(Becca got 75% on her bio quiz) |
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(# correct/# attempted) x 100
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Accuracy
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If George got a 96% on his english test, what level is he at?
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Mastery
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What are the three types of referenced interpretations of an individual's performance?
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Criterion, Achievement Standards, Norm
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Interpretations based on a similar group of people
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Norm-Referenced
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Interpretations based on a single fact
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Criterion- Referenced
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Interpretations on a large scales to determine meeting a set of standards
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Achievement Standards-Referenced
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If Bill earned a percentile of 43% on a test, what does that mean in comparison to other test takers?
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Bill did better than, or equal to, 43% of the test takers.
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-2.00; -1.00; 0; +1.00; +2.00
These are examples of what standard score? |
z-score
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What standard score has a mean of 100?
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IQ
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IQ has a standard deviation of what?
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15
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A test was given a reliability coefficient of .98. Is it reliable?
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Yes; 1.00 has smallest amount of error and 0.00 has large amount of error.
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Ms. Dorner has only given multiple choice question tests this year. As a result, boys have been doing better in her class. What do we can this type of error?
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Bias; Systematic; Predictable
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What are the two approaches to generalizing for item reliability?
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Alternate-form; Internal consistency
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How is alternate-form defined?
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two or more forms of same test; measure the same trait/skill; standardized on same population.
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How is internal consistency defined?
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After test is taken, questions are spilt and then correlated to see the reliability.
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Mr. Fisk wants to check how stable are the test results for the Peabody Vocab test. How should he do this?
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Test - Re-test; See if test takers earn same scores at different times.
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Extent to which the interpretation of the scores is supported by evidence and theory
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Validity
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What are the three most commonly categorized evidence of validity?
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Content, Criterion-related, Construct
(Remember it was CRITical to CONSTRUCT the TENT (content) |
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Extent to which a person's score on a criterion measure can be estimated from that person's test score is what kind of validity?
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Criterion-related
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Extent to which the test measures the theoretical construct it intends to measure is what types of validity?
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Construct validity
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Appropriateness of items, completeness of item sample and the way items are access leads to what kind of validity?
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Content Validity
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