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Valentine KD, Mancini B, Vo H, et al. Using Standardized Videos to Examine the Validity of the Shared Decision Making Process Scale: Results of a Randomized Online Experiment. Med Decis Making. 2021;42(1):105-113doi: 10.1177/0272989X211029267.
Valentine, K. D., Mancini, B., Vo, H., Brodney, S., Cosenza, C., Barry, M. J., & Sepucha, K. R. (2022). Using Standardized Videos to Examine the Validity of the Shared Decision Making Process Scale: Results of a Randomized Online Experiment. Medical decision making : an international journal of the Society for Medical Decision Making, 42(1), 105-113. https://doi.org/10.1177/0272989X211029267
Valentine, K D, et al. "Using Standardized Videos to Examine the Validity of the Shared Decision Making Process Scale: Results of a Randomized Online Experiment." Medical decision making : an international journal of the Society for Medical Decision Making vol. 42,1 (2022): 105-113. doi: https://doi.org/10.1177/0272989X211029267
Valentine KD, Mancini B, Vo H, Brodney S, Cosenza C, Barry MJ, Sepucha KR. Using Standardized Videos to Examine the Validity of the Shared Decision Making Process Scale: Results of a Randomized Online Experiment. Med Decis Making. 2022 Jan;42(1):105-113. doi: 10.1177/0272989X211029267. Epub 2021 Aug 03. PMID: 34344233; PMCID: PMC8633028.
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Med Decis Making. 2022 Jan;42(1):105-113. doi: 10.1177/0272989X211029267. Epub 2021 Aug 03.

Using Standardized Videos to Examine the Validity of the Shared Decision Making Process Scale: Results of a Randomized Online Experiment.

Medical decision making : an international journal of the Society for Medical Decision Making

K D Valentine, Brittney Mancini, Ha Vo, Suzanne Brodney, Carol Cosenza, Michael J Barry, Karen R Sepucha

Affiliations

  1. Division of General Internal Medicine, Massachusetts General Hospital, Boston, MA, USA.
  2. Harvard Medical School, Boston, MA, USA.
  3. Center for Survey Research, University of Massachusetts, Boston, Boston, MA, USA.

PMID: 34344233 PMCID: PMC8633028 DOI: 10.1177/0272989X211029267

Abstract

BACKGROUND: The Shared Decision Making (SDM) Process scale is a brief, patient-reported measure of SDM with demonstrated validity in surgical decision making studies. Herein we examine the validity of the scores in assessing SDM for cancer screening and medication decisions through standardized videos of good-quality and poor-quality SDM consultations.

METHOD: An online sample was randomized to a clinical decision-colon cancer screening or high cholesterol-and a viewing order-good-quality video first or poor-quality video first. Participants watched both videos, completing a survey after each video. Surveys included the SDM Process scale and the 9-item SDM Questionnaire (SDM-Q-9); higher scores indicated greater SDM. Multilevel linear regressions identified if video, order, or their interaction predicted SDM Process scores. To identify how the SDM Process score classified videos, area under the curve (AUC) was calculated. The correlation between SDM Process score and SDM-Q-9 assessed construct validity. Heterogeneity analyses were conducted.

RESULTS: In the sample of 388 participants (68% white, 70% female, average age 45 years) good-quality videos received higher SDM Process scores than poor-quality videos (

CONCLUSION: SDM Process scores showed good evidence of validity in a hypothetical scenario but were lacking in ability to classify good-quality or poor-quality videos accurately. Considerable heterogeneity of scoring existed, suggesting that individual differences played a role in evaluating good- or poor-quality SDM conversations.

Keywords: measurement; shared decision making; validity

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