This Article Full Text (OnlineFirst PDF) All Versions of this Article: 0272989X08326091v1 29/1/140    most recent Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Backlund, L. G. Articles by Montgomery, H. Search for Related Content PubMed PubMed Citation Articles by Backlund, L. G. Articles by Montgomery, H. Social Bookmarking                         What's this?

Improving Fast and Frugal Modeling in Relation to Regression Analysis: Test of 3 Models for Medical Decision Making

^* To whom correspondence should be addressed. E-mail: lars.g.backlund{at}ki.se.

	Abstract

Background. A matching heuristic (MH) model of decision making has been evaluated previously in a series of studies on medical decision making. The authors’ purpose is to evaluate an extended MH model that considers the prevalence of cue values. Methods. Data from 2 previous studies were reanalyzed, one on judgments regarding drug treatment of hyperlipidemia and the other on diagnosing heart failure. The original MH model and the extended MH model were compared with logistic regression (LR) in terms of fit to actual judgments, number of cues, and the extent to which the cues were consistent with clinical guidelines. Results. There was a slightly better fit with LR compared with MH. The extended MH model gave a significantly better fit than the original MH model in the drug treatment task. In the diagnostic task, the number of cues was significantly lower in the MH models compared to LR, whereas in the therapeutic task, LR could be less or more frugal than the matching heuristic models depending on the significance level chosen for inclusion of cues. For the original MH model, but not for the extended MH model or LR, the most important cues in the drug treatment task were often used in a direction contrary to treatment guidelines. Conclusions. The extended MH model represents an improvement in that prevalence of cue values is adequately taken into account, which in turn may result in better fit and in better agreement with medical guidelines in the evaluation of cues.

First published on October 27, 2008, doi:10.1177/0272989X08326091

Medical Decision Making 2009;29:140.

A more recent version of this article appeared on January 1, 2009


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?