Ward Rose Marie, Velicer Wayne F, Rossi Joseph S, Fava Joseph L, Prochaska James O
Psychology Department, Miami University, Oxford, OH 45056, USA.
Addict Behav. 2004 Jul;29(5):953-8. doi: 10.1016/j.addbeh.2004.02.042.
A crucial assumption for a measure is that it is factorially invariant; that is, the measurement model is the same in different subgroups and across different occasions. The invariance of the short form of the decisional balance inventory was investigated using data from a representative sample of smokers (N=4144). Separate analyses evaluated the invariance across two levels of gender (male and female), four levels of education (grade school, high school, college, and graduate school), two levels of race (white and black), four levels of age (18-25, 26-35, 36-50, and 50+), and across four assessment occasions. The results indicated that the decisional balance inventory demonstrated strong factorial invariance across the four demographic variables and across assessments.
对一项测量的一个关键假设是它具有因子不变性；也就是说，测量模型在不同亚组和不同场合是相同的。使用来自吸烟者代表性样本（N = 4144）的数据，对决策平衡量表简版的不变性进行了研究。单独的分析评估了在两个性别水平（男性和女性）、四个教育水平（小学、高中、大学和研究生）、两个种族水平（白人和黑人）、四个年龄水平（18 - 25岁、26 - 35岁、36 - 50岁和50岁以上）以及四个评估场合下的不变性。结果表明，决策平衡量表在四个人口统计学变量和评估中表现出很强的因子不变性。
