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Medication Adherence Rating Scale (MARS)


The total score ranges from 0-10 with a higher score indicating better adherence

  • Self-report measure
  • Evaluates both attitudes about medications and actual medication-taking behavior

  • Scoring requires some interpretation, “yes” response does not necessarily indicate a positive attitude or behavior
  • Total score correlated weakly with adherence, validity moderate-weak


Pomykacz B, et al. Harv Rev Psychiatry. 2007;15(5):259-263. 
Thompson K, et al. Schizophr Res. 2000;42(3):241-247.

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