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VALIDITY AND RELIABILITY - Coggle Diagram

- - - - Does not depend on established theories for support
  - - - Instrumental validity, used to demonstrate the accuracy of a measure procedure by comparing it with other measure procedure that is valid
        
        The written test can be validated (hands=on driving test is compared to the written test)
    - - Based on the extent to which a measurement reflects the specific intended domain or content
        
        Researchers aim to study mathematical learning and create survey to test for mathematical skill
    - - Convergent validity and discriminate validity
- - - - Addresses the consistency of the implementation of a rating system
  - - - The agreement over repeated tests if the variables being measured remain unchanged
        
        Results are compared and correlated with the initial test to give a measure of stability
    - - The extent to which tests or procedures assess the same characteristic, skill or quality
        
        Help researchers interpret data and predict the value of scores and the limits of the relationship among variables
    - - Relating two sets of test scores to one another to highlight the degree of relationship or assocciation
- - - - Synchronic Reliability
        
        The similarity of observations within the same time frame
      - The stability of observation over time