Data_Sheet_1_Drop-the-p: Bayesian CFA of the Multidimensional Scale of Perceived Social Support in Australia.ZIP

AimWe aimed to investigate whether the 12-item Multidimensional Scale of Perceived Social Support (MSPSS) constitutes a valid and reliable measure of social support for the general adult Australian population.
MethodsData were from Australia’s National Survey of Adult Oral Health 2004–2006 and included 3899 participants aged 18 years old and over. The psychometric properties were evaluated with Bayesian confirmatory factor analysis. One-, two-, and three-factor (Significant Other, Family and Friends) structures were tested. Model fit was assessed with the posterior predictive p-value (PPPχ2), Bayesian root mean square error of approximation (BRMSEA), and Bayesian comparative fit index (BCFI). Dimensionality was tested by comparing competing factorial structures with the Bayes factor (BF). Reliability was evaluated with the Bayesian ΩH. Convergent validity was investigated with the Perceived Stress Scale (PSS) and discriminant validity with the Perceived Dental Control scale (PDC-3).
ResultsThe theoretical three-factor model (Significant Other, Family, and Friends) provided a good fit to the data [PPPχ2 < 0.001, BRMSEA = 0.089-95% credible interval (CrI) (0.088, 0.089); BCFI = 0.963-95% CrI (0.963, 0.964)]. The BF provided decisive support for the three-factor structure in relation to the other structures. The SO [BΩH = 0.95 - 95% CrI (0.90, 0.99)], FA (BΩH = 0.92 - 95% CrI (0.87, 0.97), and FR (BΩH = 0.92 - 95% CrI (0.88, 0.97)] subscales displayed excellent reliability. The MSPSS displayed initial evidence of convergent and discriminant validity.
ConclusionThe MSPSS demonstrated good psychometric properties and excellent reliability in a large Australian sample. This instrument can be applied in national surveys and provide evidence of the role of social support in the Australian population.

本研究旨在探究12条目多维感知社会支持量表（Multidimensional Scale of Perceived Social Support, MSPSS）是否可作为澳大利亚普通成年人群体社会支持的有效且可靠的测评工具。
研究数据源自2004–2006年澳大利亚全国成年人口腔健康调查，共纳入3899名18岁及以上的参与者。采用贝叶斯验证性因子分析对其心理测量学特性进行评估。分别检验了单因子、双因子以及三因子（重要他人、家人与朋友）模型的拟合情况。模型拟合度通过后验预测p值（posterior predictive p-value, PPPχ²）、贝叶斯近似均方根误差（Bayesian root mean square error of approximation, BRMSEA）以及贝叶斯比较拟合指数（Bayesian comparative fit index, BCFI）进行评估。通过贝叶斯因子（Bayes factor, BF）对比竞争性因子模型以检验维度结构。信度采用贝叶斯ΩH进行评估。收敛效度通过感知压力量表（Perceived Stress Scale, PSS）进行探究，区分效度则采用感知牙科控制量表（Perceived Dental Control scale, PDC-3）进行分析。
理论三因子模型（重要他人、家人与朋友）对数据展现出良好的拟合效果[PPPχ² < 0.001，BRMSEA=0.089，95%置信区间（credible interval, CrI）为(0.088, 0.089)；BCFI=0.963，95% CrI为(0.963, 0.964)]。贝叶斯因子结果明确支持三因子模型优于其他因子模型。重要他人（Significant Other, SO）子量表（BΩH=0.95，95% CrI为(0.90, 0.99)）、家人（Family, FA）子量表（BΩH=0.92，95% CrI为(0.87, 0.97)）以及朋友（Friends, FR）子量表（BΩH=0.92，95% CrI为(0.88, 0.97)）均表现出极佳的信度。MSPSS初步展现出收敛效度与区分效度。
研究表明，MSPSS在澳大利亚大型成年人群样本中展现出良好的心理测量学特性与极佳的信度。该量表可应用于全国性调查，为探究社会支持在澳大利亚人群中的作用提供实证依据。