Term
| nominal level of measurement |
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Definition
| he scale that represents a hierarchy of precision on which a variable might be assessed. |
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Definition
| level of meauremet desribes variables that are categorized in nature and are different in quality rather then quantity. |
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Term
| ordinal level of measurement |
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Definition
| variables that can be ordered along some type of continuim |
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Term
| The Interval Level of Measurement |
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Definition
| variables that have equal intervals between them. |
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Term
| ratio level of measurement |
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Definition
| describes variables that have equal intervals between them but also has a posible value in zero |
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Term
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Definition
| one that can asume any value along some underlying continuim |
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Term
| discrete or categorized variable |
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Definition
| one with values that can be replaced only into categorizes that have definate boundaries |
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Term
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Definition
when a test measures the same theing moe than once and results in the same outcomes
when we talk of reliability we talk of scores |
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Term
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Definition
the score that you actually observe or record.
the number of correct words on a test.
any observant score consists of two components: true score and error score |
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Term
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Definition
| the perfect reflection of the rue value of that variable |
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Term
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Definition
| the factors that cause the true score and the observed score to differ |
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Term
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Definition
| difference between true and observed scores resulting from the testing situation |
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Term
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Definition
| the reason for the difference between the true and observed scores is a characteristic of the person taking the test. |
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Definition
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Term
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Definition
| used in the measurement of reliability |
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Term
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Definition
range in value fom 21.00 to 11.00
roughly he same as correlation coefficient |
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Term
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Definition
| a measure of how stable a test is over time |
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Term
| parrell forms reliability |
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Definition
common form of reliability
different forms of the same test are give to the same groups of participants. |
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Term
| inter related reliability |
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Definition
| a measure of cosistecy from rater o rater, rather then from time to time |
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Term
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Definition
| examines how unified the items are in a test |
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Term
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Definition
| the test or instrument that you are using actually measures what you need to have measured. |
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Term
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Definition
the simpliest most straightforeward type of validity - indicates the extent to which a est represents the universe of items from which is drawn
tests that sample a particular area of knowledge |
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Term
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Definition
| concerned with either how well a test estimaes present performance(concurrent validity) or how well it predicts performance (predictive validity) |
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Definition
| is the extent to which the results of a test are related to a uderlying set of elated variables. |
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Term
| multitrait multimethod matrix |
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Definition
measures various traits through various methods
reguardless of how you measure he tais, the scores are always related. |
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Term
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Definition
| methods converge upon one another |
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Term
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Definition
| method and trait variance are distinct from one another |
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