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The use and interpretation of quasi-experimental studies in medical informatics.


ABSTRACT: Quasi-experimental study designs, often described as nonrandomized, pre-post intervention studies, are common in the medical informatics literature. Yet little has been written about the benefits and limitations of the quasi-experimental approach as applied to informatics studies. This paper outlines a relative hierarchy and nomenclature of quasi-experimental study designs that is applicable to medical informatics intervention studies. In addition, the authors performed a systematic review of two medical informatics journals, the Journal of the American Medical Informatics Association (JAMIA) and the International Journal of Medical Informatics (IJMI), to determine the number of quasi-experimental studies published and how the studies are classified on the above-mentioned relative hierarchy. They hope that future medical informatics studies will implement higher level quasi-experimental study designs that yield more convincing evidence for causal links between medical informatics interventions and outcomes.

SUBMITTER: Harris AD 

PROVIDER: S-EPMC1380192 | biostudies-other | 2006 Jan-Feb

REPOSITORIES: biostudies-other

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The use and interpretation of quasi-experimental studies in medical informatics.

Harris Anthony D AD   McGregor Jessina C JC   Perencevich Eli N EN   Furuno Jon P JP   Zhu Jingkun J   Peterson Dan E DE   Finkelstein Joseph J  

Journal of the American Medical Informatics Association : JAMIA 20051012 1


Quasi-experimental study designs, often described as nonrandomized, pre-post intervention studies, are common in the medical informatics literature. Yet little has been written about the benefits and limitations of the quasi-experimental approach as applied to informatics studies. This paper outlines a relative hierarchy and nomenclature of quasi-experimental study designs that is applicable to medical informatics intervention studies. In addition, the authors performed a systematic review of tw  ...[more]

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