Postgraduate Program in Medical Sciences, Medical School, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
Braz J Psychiatry. 2010 Mar;32(1):47-55. doi: 10.1590/s1516-44462010000100010.
To analyze the psychometric properties of Brazilian version of Social Rhythm Metric-17 and to present the score algorithm in regular shift employees.
This is a cross-sectional study. The Social Rhythm Metric assess the regularity of daily life associated to changes in biological rhythms. The scale was applied, during nine days, to 145 employees, 27.6 % male and 72.4% female, ages between 18 and 60, mean = 36.1 (sd = 9.87). Mean values were compared using the Student's t-test for independent samples and ANOVA. Factor analysis was performed using principal component analysis; the reliability analysis, through Spearman's correlation.
The Student t test didn't reveal any significant difference between sex in IRA (t = 0.60; p = 0.55) or ETA (t = 0.67; p = 0.95). The factor analysis showed three components, the first was associated to survival related activities; the second, related to pleasure and work and the third was related to no essential survive activities.
This version of the Social Rhythm Metric-17 instrument allows to assess an important human zeitgeber, contributing for other studies which can to evaluate the determinant role of social rhythm.
The Brazilian version of social rhythm metric 17 presents validity of content and good test-retest reliability.
分析巴西版社会节律度量表-17 的心理测量特性，并提出常班员工的评分算法。
这是一项横断面研究。社会节律度量表评估与生物节律变化相关的日常生活规律性。该量表在 9 天内应用于 145 名员工，其中 27.6%为男性，72.4%为女性，年龄在 18 至 60 岁之间，平均值为 36.1（标准差=9.87）。使用独立样本学生 t 检验和方差分析比较均值。使用主成分分析进行因子分析；使用斯皮尔曼相关性进行可靠性分析。
学生 t 检验未发现 IRA（t=0.60；p=0.55）或 ETA（t=0.67；p=0.95）性别之间存在显著差异。因子分析显示有三个成分，第一个与生存相关活动有关；第二个与乐趣和工作有关，第三个与非必要的生存活动有关。
该版本的社会节律度量表-17 仪器可评估重要的人类授时因子，为其他研究提供支持，以评估社会节律的决定性作用。
巴西版社会节律度量表 17 具有内容效度和良好的重测信度。
