Abstract

Objectives

The aim of this study was to assess the reliability, dimensionality and validity of the self-report questionnaire Health-Risk Attitude Scale (HRAS-13) in a sample of the general population and a patient population.

Methods

Sample 1 (n = 930) was recruited from the general population aged 18–65 years in the Netherlands. Sample 2 (n = 486) was recruited from the population of knee and hip osteoarthritis patients aged 45 and over, also from the Netherlands. Reliability was assessed using Cronbach’s alpha, average inter-item correlation and item-total correlations. Dimensionality was examined using confirmatory factor analysis (CFA), principal component analysis (PCA) and bifactor analysis. Validity was assessed by performing known-group analysis using ANOVA tests.

Results

Cronbach’s alphas of the HRAS-13 were 0.73 in sample 1 and 0.69 in sample 2. Reliability and dimensionality analyses differed slightly between the samples, and suggest that a short version of the HRAS may capture a general component of health-risk attitude. Validity assessment of known groups showed that the HRAS-13 and a likely HRAS-6 distinguished between subgroups of respondents based on most of the assessed characteristics, but not all.

Discussion

These findings are a preliminary indication that the HRAS-13 is a promising multidimensional instrument for measuring health-risk attitude. However, further research in various samples on decisions where health risks play a role is warranted to confirm the dimensionality of the HRAS-13 and the items to be retained in a full or a shorter version.

中文翻译：

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健康风险态度量表（HRAS-13）的心理计量学评估：评估普通人群和患者人群的信度，维度和有效性

摘要

目标

这项研究的目的是评估一般人群和患者人群中自我报告调查表健康风险态度量表（HRAS-13）的可靠性，维度和有效性。

方法

样本1（n  = 930）是从荷兰18-65岁的普通人群中招募的。样本2（n  = 486）是从45岁以上的膝关节和髋关节骨关节炎患者（也来自荷兰）中招募的。使用Cronbach's alpha，平均项目间相关性和项目总体相关性来评估可靠性。使用确认性因素分析（CFA），主成分分析（PCA）和双因素分析检查了尺寸。通过使用ANOVA测试执行已知组分析来评估有效性。

结果

HRAS-13的Cronbach的alpha值在样品1中为0.73，在样品2中为0.69。可靠性和尺寸分析在两个样品之间略有不同，这表明HRAS的简短版本可能反映了健康风险态度的一般组成部分。对已知组的有效性评估表明，HRAS-13和可能的HRAS-6根据大多数评估的特征（但不是全部）区分了受访者的亚组。

讨论区

这些发现初步表明HRAS-13是用于测量健康风险态度的有前途的多维仪器。但是，需要对各种样本进行进一步研究，以决定健康风险在其中扮演什么角色，以确认HRAS-13的尺寸以及要保留的完整或较短版本的物品。