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Potpourri
Stat Terms
Measurement Scales
Definitions
Assessment Analysis
100
Assessment procedure conducted without standardized administration and scoring rules.
What is an informal assessment?
100
Distribution of scores from lowest to highest or vice versa.
What is the range?
100
This type of scale has magnitude but no absolute zero. Position/order is important.
What is an ordinal scale?
100
The extent to which a test measures what it purports to measure.
What is validity?
100
The extent to which a test measures an underlying psychological quality or construct.
What is construct validity?
200
Standardized tests are considered this type of assessment.
What is a formal assessment?
200
The three most common measures of central tendency.
What are the mean, median, and mode?
200

Ethnicity is an example of data found on this type of scale.

What is a nominal scale?

200
Set of tasks or questions used to elicit particular types of behaviors. This type of assessment can be formal or informal.
What is a test?
200
One half of the test correlates well with the other half.
What is split-half reliability?
300

Every three years 

What is how often a student's eligibility for special education services must be considered by law?

300
The method for finding the median in an even set of numbers.
What is ranking the numbers from least to greatest and then taking the two middle numbers and averaging them together?
300
This type of scale begins at an arbitrary starting point, no absolute zero, and intervals are equal between the units.
What is an equal interval scale?
300
Process of synthesizing and analyzing data to speculate on possible future outcomes of a situation based on present circumstances and information.
What is a prognosis?
300

The more I party, the less I study is an example of this. 

What is a negative correlation?

400
Type of scores that are used to determine derived scores

What are raw scores?

400
The term used to describe the spread or distribution of a set of scores.
What is variability?
400
Money is an example of this type of scale. It has an absolute zero, intervals are equal, and the data can be manipulated mathematically.
What is a ratio scale?
400

Educational and Legal 

What are the two types of decisions made following special education assessment?

400
How well a test compares with a valued measure.
What is criterion validity?
500

Is there a school performance problem? 

What is the first question the assessment team asks? 

500

80%

What is an acceptable score for inter-rater reliability?

500
IQ scores are an example of this type of measurement scale.
What is equal interval?
500
Collection of instruments or tests that are used in a formal assessment activity.
What is a test battery?
500
Concurrent and Predictive 

What are the two types of criterion validity?