Reliability _amp; Validity by ert554898

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									Reliability & Validity
Reliability & Validity

   Reliability = Does it provide a
    consistent result (even if it is wrong)

   Validity = Does it measure what it says
    it measures
Reliability

   Inter Observer

   Test Retest

   Parallel Forms

   Split Half
Internal Validity
   History
   Maturation
   Testing
   Instrumentation
   Mortality
   Statistical Regression to the Mean
   Social Interaction
   Diffusion of Treatment & Compensatory Rivalry
   Resentful Demoralization & Compensatory
    Equalization
External Validity-
Generalizability

   Lab vs Field Studies and other setting
    issues
   Selection Bias
   Pretest
   Multiple Treatment
   Reproduction Issues
Construct Validity
   Inadequate Preoperational Explication
   Mono-Operation Bias
   Mono-Method Bias
   Interaction of Different TXs
   Interaction of testing and Tx
   Restricted Generalizability across Constructs
   Confounding/Levels
   Hypothesis Guessing
   Evaluation Apprehension
   Experimenter’s Expectations and Demand
    Characteristics
Measurement Validity

   Face Validity
   Content
   Criterion
   Predictive
   Concurrent
   Construct
   Discriminant
Statistical Conclusion Validity

   Statistical Significance

   Remember Type I and Type II Errors?

								
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