Zhang Binfeng, Li Xiuxia, Tan Peixuan, Liu Yuxing, He Wanyong, Wang Lu, Huang Shuling, Nie Guanghui
Department of Psychology, Guangxi Medical University, Nanning, China.
Front Psychiatry. 2023 Jul 27;14:1228179. doi: 10.3389/fpsyt.2023.1228179. eCollection 2023.
The Odor Awareness Scale (OAS) is a questionnaire that assesses individual differences in awareness of odors in the surrounding environment, which has been shown to be associated with affective symptoms in recent researches. To further research, A Chinese version of the OAS needs to be introduced.
To investigate the factor structure and validate the psychometric properties of the OAS.
A total of 978 participants from college were randomly allocated into two groups for exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), respectively. Additionally, the study entailed item analysis and scrutinized internal consistency reliability, test-retest reliability, and concurrent validity. Test-retest reliability was assessed by having 214 participants complete the OAS twice at a one-week interval. Concurrent validity was measured using the Body Odor Sniffing Questionnaire (BOSQ), the Generalized Anxiety Disorder Scale (GAD-7), and the Toronto Alexithymia Scale (TAS-20).
EFA identified three factors that best fit the data: odor sensitivity, odor impact, and odor attention. CFA validated a second-order factor model, yielding good fit indices: / Df = 2.326, RMSEA = 0.052, CFI = 0.911, TLI = 0.900, SRMR = 0.053. The final version of the OAS comprised 27 items and exhibited a commendable internal consistency reliability (Cronbach's α = 0.913), and a good test-retest reliability, as evidenced by the high Pearson correlation coefficient ( = 0.940) and intraclass correlation coefficient (ICC = 0.940). The OAS was significantly correlated with BOSQ ( = 0.416), GAD-7 ( = 0.155), and TAS-20 ( = -0.081).
The Chinese version of the OAS demonstrated robust reliability and validity, rendering it a valuable instrument for evaluating odor awareness in the Chinese population.
气味觉察量表（OAS）是一种用于评估个体对周围环境中气味觉察差异的问卷，近期研究表明其与情感症状相关。为进一步开展研究，需要引入OAS的中文版。
探讨OAS的因子结构并验证其心理测量学特性。
共978名大学生被随机分为两组，分别进行探索性因子分析（EFA）和验证性因子分析（CFA）。此外，该研究还进行了项目分析，并考察了内部一致性信度、重测信度和同时效度。通过让214名参与者在一周间隔内两次完成OAS来评估重测信度。使用体臭嗅闻问卷（BOSQ）、广泛性焦虑障碍量表（GAD-7）和多伦多述情障碍量表（TAS-20）来测量同时效度。
EFA确定了最符合数据的三个因子：气味敏感度、气味影响和气味注意力。CFA验证了一个二阶因子模型，得到了良好的拟合指数：χ²/ Df = 2.326，RMSEA = 0.052，CFI = 0.911，TLI = 0.900，SRMR = 0.053。OAS的最终版本包含27个项目，表现出良好的内部一致性信度（Cronbach's α = 0.913）和良好的重测信度，高皮尔逊相关系数（r = 0.940）和组内相关系数（ICC = 0.940）证明了这一点。OAS与BOSQ（r = 0.416）、GAD-7（r = 0.155）和TAS-20（r = -0.081）显著相关。
OAS中文版表现出可靠的信度和效度，使其成为评估中国人群气味觉察的有价值工具。
