Validity & Reliability of NAP™ Assessments


Does the NAP™ measure the constructs it purports to measure?

  • NAP correlated with existing measures of other assessments in the expected directions.
  • Theoretical expectations in terms of strength and direction of correlations were confirmed.
  • Validity arguments/hypotheses for the NAP assessment findings were accepted and found true.
  • Correlations ranged between 0.5 – 0.8 (r²).
  • Detailed report available to NAP™ practitioners


How consistent are the NAP measures and scores across time?

  • The test-retest reliabilities of the NAP assessment administered to a sample of 199 participants ranged between 0.7 – 0.9 (r²) positive correlations.
  • NAP assessment is found highly reliable according to constructs tested.
  • Detailed report available to NAP™ practitioners