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. 2012;27(6):674-87.
doi: 10.1080/08870446.2011.618536. Epub 2011 Sep 23.

Assessing treatment motivation among patients receiving antiretroviral therapy: a multidimensional approach

Eric Houston  1 , David J McKirnan, Daniel Cervone, Matthew S Johnson, Theo G M Sandfort
Affiliations

Assessing treatment motivation among patients receiving antiretroviral therapy: a multidimensional approach

Eric Houston et al. Psychol Health. 2012.

Abstract

Using multidimensional scaling (MDS) analysis, this study examined how patient conceptualisations of treatment motivation compare with theoretically based assumptions used in current assessment approaches. Patients undergoing antiretroviral therapy for HIV/AIDS (n=39) rated for similarity between all possible pairings of 23 treatment descriptions, including descriptors of intrinsic, extrinsic, approach and avoidance motivation. MDS analyses revealed that patient perceptions of intrinsic and extrinsic motivations often differ from those based on definitions derived from common interpretations of self-determination theory. Findings also showed that patients reported motivation for avoiding treatment when they associated their medication regimens with side effects and other negatively valenced outcomes. The study describes new applications of MDS in assessing how patients perceive the relationship between treatment behaviours and specific forms of motivation, such as intrinsic and extrinsic motivations. In addition, the study suggests how MDS may be used to develop behavioural strategies aimed at helping patients follow their regimens consistently by identifying treatment conceptualisations and contexts that facilitate or impede adherence.

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Figures

Figure 1
Figure 1
Multidimensional scaling for participants with optimal adherence. Note. For purposes of clarity, three items that occupy similar positions are omitted from the configuration. These items and the items with which they overlap are: 1) sav [overlaps with me]; 2) on_track [immune and healthy]; and 3) resp [doctor].
Figure 2
Figure 2
Multidimensional scaling for participants with suboptimal adherence Note. Two items that overlap with other items are omitted from the configuration to improve clarity: 1) sav [overlaps with me]; and 2) resp [doctor].
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