行为自主决策量表在中国青少年群体中的信效度检验

目的 修订行为自主决策量表(Decision - making autonomy scale，DMAS)中文版，并在国内青少年群体中检验其信效度和跨性别的测量等值性。方法 采用整群取样，对1 185名青少年进行施测，用以评定DMAS中文版的结构效度、内部一致性信度和测量等值性，以亲子亲合量表和生活满意度量表为效标，4周后，从样本1中随机选取110名被试进行重测。结果 中文版DMAS的Cronbach α系数为0.80，重测信度为0.70；题总相关为0.40～0.70(P＜0.001)；探索性和验证性因素分析显示，单因素模型的拟合指数良好(χ2/v = 4.82，CFI = 0.92，TLI = 0.90，RMSEA = 0.06，SRMR = 0.04)；行为自主决策与各效标(亲子亲合及生活满意度)显著相关；多组验证性因素分析结果显示，跨性别的形态等值、弱等值、强等值和严格等值模型均被接受。结论 中文版DMAS具有良好的信效度及跨性别的测量等值性，可以作为测量我国青少年群体行为自主决策的有效工具。

Testing reliability and validity of the decision-making autonomy scale in Chinese adolescents

To test reliability, validity and measurement invariance of the Chinese version of Decision-Making Autonomy Scale (DMAS) in Chinese adolescents. Methods A whole-group sample of 1 185 adolescents were selected to assess the structural validity, internal consistency and measurement equivalence of the Chinese version of the DMAS, using the Parent-Child Bonding Scale and the Life Satisfaction Scale as valid standards. 110 respondents out of sample 1 were selected for reassessment after four weeks. Results The Cronbach alpha coefficient of the Chinese DMAS was 0.80, and the retest reliability was 0.70; the total correlation of the questions ranged from 0.40 to 0.70(P<0.001); exploratory and validation factor analysis showed that the one-way model had good fit indices(χ2/df =4.82, CFI =0.92, TLI =0.90, RMSEA =0.06, and SRMR =0.04); behavioral autonomous decision making was significantly correlated with each validity mark(parent-child bonding and life satisfaction); the results of multi-group validation factor analysis showed that the cross-sex morphological equivalence, weak equivalence, strong equivalence and strict equivalence models were accepted. Conclusion The Chinese version of Decision-Making Autonomy Scale has good reliability and cross-gender measurement equivalence and can be used as a valid tool to measure behavioral autonomous decision-making in the adolescent population.