Meaning
From Numbers /
Skewed Distribution
Review for Numberical Scales
Measures of Central Tendency & of Dispersion
Average Performance
Types of Scores / Descriptive Statistics
100
The first score obtained in testing; usually represents the number of items correct.
What is raw score?
100
Using numbers for the purpose of identification.
What is nominal scale?
100
Statistical methods for observing how data cluster around the mean.
What is measures of central tendency?
100
A graphic representation of how often each score occurs in a set of data.
What is frequency polygon?
100
Two ways of looking at data: scores that express the percentage of students who scores as well as or lower than a given student's score and derived scores that are expressed in standard deviation units.
What is percentile ranks and z scores?
200
Tests designed to compare an individual student’s score with national averages.
What is norm-reference test?
200
Using numbers for ranking.
What is ordinal scale?
200
A symmetrical distribution with a single numerical representation for the mean, median, and mode.
What is normal distribution?
200
A unit of measurement that represents the typical amount that a score can be expected to vary from the mean in a given set of data.
What is standard deviation?
200
Two methods of reporting scores: 1) a method of reporting scores that divide data into 9 groups and scores are reported as 1 through 9 with a mean of 5, and 2) a method of reporting scores that divides data into 10 groups with each group representing 10% of the obtained scores.
What is stanines and deciles?
300
Describes a distribution that has either more positively distributed scores or more negatively distributed scores.
What is skewed?
300
Using numbers for ranking in which numerical units are equidistant.
What is internal scale?
300
Statistical methods for observing how data spread from the mean.
What is measures of dispersion?
300
Describes how scores vary.
What is variability?
300
A score obtained by using a raw score and expectancy tables.
What is derived score?
400
Describes a distribution in which more of the scores fall below the mean.
What is positively skewed?
400
Numerical scale with quality of equidistant units and absolute zero.
What is ration scale?
400
Describes the total amount that a group of scores varies in a set of data.
What is variability?
400
The most frequent occurring score in a set of scores, the middle most score in a set of data, and the arithmetic average of a set of data.
What is mode, median, and mean?
400
Derived scores that represent equal units; also known as linear scores.
What is standard scores?
500
Describes a distribution in which more of the scores fall above the mean.
What is negatively skewed?
500
The numerical scale used to determine your semester GPA.
What is internal scale?
500
The distance between the highest and lowest scores in a data set.
What is range?
500
A method of determining how many times each score occurs in a set of data, a distribution that has two most frequently occurring scores, and a distribution with three or more scores.
What is frequency distribution, bomodal distribution, and multimodal distribution?
500
Statistics used to organize and describe data.
What is descriptive statistics?
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