45: Parallel Forms Reliability

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Parallel Forms Reliability

  • Parallel forms reliability refers to the administration of two alternate forms of the same measurement device and then comparing the scores.
  • A correlation between the two forms is computed just as in the test-retest method.
  • Eliminates the problem of memory effect
  • Can address a wider array of sampling of the entire domain that the test-retest method
  • But, requires additional work to develop two measurement devices