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39 Cards in this Set
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What are the two most commonly used scales in education?

Ordinal; Equal Interval

What kind of scale does this demonstrate: Abner, Allison, Andy, Astor

Nominal

What kind of scale does this demonstrate?
Abner: 4'9" Allison: 5'0 Andy: 5'3" Astor: 5'5" 
Equal Interval

What kind of scale does this demonstrate:
Abner: Intermediate Allison: Intermediate Andy: Above Average Astor: Excellent 
Ordinal

Mathematical operations can be performed on which of the scales of measurements?

Equalinterval

Name the three measures of central tendancy

average (mean), mode, median

The distance between each score.

Variance

Symmetry of the distribution of scores

Skew

The rate in which a curve rises and falls

Kurtosis

Most frequently obtained score

Mode

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

Median

Arithmetic average

Mean

How the scores are spread out above and below the average score

Dispersion

What are the three measures of dispersion?

range, variance, and standard deviation

The distance between the two extremes scores of high and low (+1)

Range

Which two correlation coefficients have the best predictive value?

1.00; 1.00

True/False: Correlational data can't be used to draw a conclusion about causality.

True

(# correct/# possible) x 100

Percent correct
(Becca got 75% on her bio quiz) 
(# correct/# attempted) x 100

Accuracy

If George got a 96% on his english test, what level is he at?

Mastery

What are the three types of referenced interpretations of an individual's performance?

Criterion, Achievement Standards, Norm

Interpretations based on a similar group of people

NormReferenced

Interpretations based on a single fact

Criterion Referenced

Interpretations on a large scales to determine meeting a set of standards

Achievement StandardsReferenced

If Bill earned a percentile of 43% on a test, what does that mean in comparison to other test takers?

Bill did better than, or equal to, 43% of the test takers.

2.00; 1.00; 0; +1.00; +2.00
These are examples of what standard score? 
zscore

What standard score has a mean of 100?

IQ

IQ has a standard deviation of what?

15

A test was given a reliability coefficient of .98. Is it reliable?

Yes; 1.00 has smallest amount of error and 0.00 has large amount of error.

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?

Bias; Systematic; Predictable

What are the two approaches to generalizing for item reliability?

Alternateform; Internal consistency

How is alternateform defined?

two or more forms of same test; measure the same trait/skill; standardized on same population.

How is internal consistency defined?

After test is taken, questions are spilt and then correlated to see the reliability.

Mr. Fisk wants to check how stable are the test results for the Peabody Vocab test. How should he do this?

Test  Retest; See if test takers earn same scores at different times.

Extent to which the interpretation of the scores is supported by evidence and theory

Validity

What are the three most commonly categorized evidence of validity?

Content, Criterionrelated, Construct
(Remember it was CRITical to CONSTRUCT the TENT (content) 
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?

Criterionrelated

Extent to which the test measures the theoretical construct it intends to measure is what types of validity?

Construct validity

Appropriateness of items, completeness of item sample and the way items are access leads to what kind of validity?

Content Validity
