Flashcards
Chapter 3 Measurement Reliability
Flashcards do conjunto (15)
- 1measurementform of operationalization in which abstract concepts are translated into observable and quantifiable information or data
- 2reliabilityconsistency that a measurement instrument assesses a given construct
- 3validitydegree of relationship, or the overlap, b/w the measurement instrument and the construct it is intended to asses
- 4Observed score (O)score obtained on a measurement instrument
- 5true scorereplicable feature of the concept being measured
- 6Random errorattributed to unexpected events that tend to artificially widen the variability or spread of observed scores in a nonsystematic way
- 7systematic errorattributed to unexpected events that tend to artificially inflate or deflate observed scores in a systematic way
- 8split-half reliabilityassessed by randomly dividing a scale into 2 sets containing an equal number of items, both administered to the same respondents, with a test of relatedness calculated b/w these 2 summed scores
- 9cronbach's alphaan index of the hypothetical value that would be obtained if all the items that could constitute a given scale were available and randomly put together into a very large number of tests of equal size
- 10test-retest reliabilityassessed by administering a scale to participants, and at a later time re-administering to the same participants, with the degree of relatedness calculated b/w 2 administrations
- 11parallel forms reliabilityassessed by devising 2 separate item sets intended to assess the same underlying construct, administered to the same participants at the same time with a degree of relatedness calculated
- 12latent factorcharacteristic or construct that is not directly measured or observed by that underlies responses on a measurement scale
- 13exploratory factor analysisthe technique to determine the underlying factor structure if the research doesn't have hypothesis regarding the number of underlying factors and the items that might constitute each factor
- 14confirmatory factor analysisthe technique to determine the underlying factor structure, if the researcher starts with hypotheses precisely stipulating the number of potential factors, which items should load on which factors and how the factors should be correlated
- 15item response theory (IRT)the technique to determine how each item operates in terms of difficulty, discrimination, and guessing with respect to the overall scale
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- Research Methods FlashCards sobre Chapter 3 Measurement Reliability, criado por Gina Santisaranyu em 24-09-2019.
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- Gina Santisaranyu
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