Statistics Vocab - Chapter 1
17 Cards in this Set
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Data
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Recorded values whether numbers or labels, together with their context
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Data Table
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An arrangement of data in which each row represents a case and each column represents a variable
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Context
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The context ideally tells who was measured, what was measured, how the data were collected, where the data were collected, and when and why the study was performed
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Case
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An individual about whom or which we have data
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Respondent
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Someone who answers or responds to a survey
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Subject/Participant
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A human experimental unit
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Experimental Unit
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An individual in a study for which or for whom data values are recorded. (human experimental units are referred to as subjects or participants)
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Record
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Information about an individual in a database
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Sample
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A subset of a populations examined in hope of learning about the population
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Population
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The entire group of individuals or instances about whom we hope to learn
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Variable
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A variable holds information about the same characteristic for many cases
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Categorical/Qualitative Variable
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A variable that names categories with words or numerals
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Nominal Variable
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The term nominal can be applied to a variable whose values are used only to name categories
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Quantitative Variable
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A variable in which the numbers are values of measured quantities with units
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Units
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A quantity or amount adopted as a standard of measurement such as dollars, hours, or grams etc.
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Identifier Variable
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A categorical variable that records a unique value for each case used to name or identify it
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Ordinal Variable
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The term ordinal can be applied to a variable whose categorical values possess some kind of order
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Statistics Vocab - Chapter 1