Web-Based Public Ratings of General Practitioners in Norway: Validation Study (Preprint)

Author:

Bjertnæs ØyvindORCID,Iversen Hilde HestadORCID,Norman RebeckaORCID,Valderas Jose MORCID

Abstract

BACKGROUND

Understanding the complex relationships among multiple strategies for gathering users’ perspectives in the evaluation of the performance of services is crucial for the interpretation of user-reported measures.

OBJECTIVE

The main objectives were to (1) evaluate the psychometric performance of an 11-item web-based questionnaire of ratings of general practitioners (GPs) currently used in Norway (Legelisten.no) and (2) assess the association between web-based and survey-based patient experience indicators.

METHODS

We included all published ratings on GPs and practices on Legelisten.no in the period of May 5, 2012, to December 15, 2021 (N=76,521). The questionnaire consists of 1 mandatory item and 10 voluntary items with 5 response categories (1 to 5 stars), alongside an open-ended review question and background variables. Questionnaire dimensionality and internal consistency were assessed with Cronbach α, exploratory factor, and item response theory analyses, and a priori hypotheses were developed for assessing construct validity (chi-square analysis). We calculated Spearman correlations between web-based ratings and reference patient experience indicators based on survey data using the patient experiences with the GP questionnaire (n=5623 respondents for a random sample of 50 GPs).

RESULTS

Web-based raters were predominantly women (n=32,074, 64.0%), in the age range of 20-50 years (n=35,113, 74.6%), and reporting 5 or fewer consultations with the GP each year (n=28,798, 64.5%). Ratings were missing for 18.9% (n=14,500) to 27.4% (n=20,960) of nonmandatory items. A total of 4 of 11 rating items showed a U-shaped distribution, with &gt;60% reporting 5 stars. Factor analysis and internal consistency testing identified 2 rating scales: “GP” (5 items; α=.98) and “practice” (6 items; α=.85). Some associations were not consistent with a priori hypotheses and allowed only partial confirmation of the construct validity of ratings. Item response theory analysis results were adequate for the “practice” scale but not for the “GP” scale, with items with inflated discrimination (&gt;5) distributed over a narrow interval of the scale. The correlations between the web-based ratings GP scale and GP reference indicators ranged from 0.34 (<i>P</i>=.021) to 0.44 (<i>P</i>=.002), while the correlation between the web-based ratings practice scale and reference indicators ranged from 0.17 (not significant) to 0.49 (<i>P</i>&lt;.001). The strongest correlations between web-based and survey scores were found for items measuring practice-related experiences: phone availability (ρ=0.51), waiting time in the office (ρ=0.62), other staff (ρ=0.54-0.58; <i>P</i>&lt;.001).

CONCLUSIONS

The practice scale of the web-based ratings has adequate psychometric performance, while the GP suffers from important limitations. The associations with survey-based patient experience indicators were accordingly mostly weak to modest. Our study underlines the importance of interpreting web-based ratings with caution and the need to further develop rating sites.

CLINICALTRIAL

Publisher

JMIR Publications Inc.

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. – Stor sannsynlighet for at Legelisten.no ikke fungerer;Den norske tannlegeforenings Tidende;2023-05-19

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