There is a lack of a psychometric tool for generational identity. We have conducted two studies involving Bangladeshi older adults who have witnessed the Bangladesh liberation war in 1971 to develop a new generational identity scale (GIS). The first study (N=300) prepared an initial pool of 31 items and got them vetted by expert judges, which retained 21 items to form the provisional GIS (GIS-21). An exploratory factor analysis on GIS-21 excluded eight items and offered a two-factor solution: (i) identification with the generation and (ii) awareness of the generational importance. The second study (N=176) ran a confirmatory factor analysis on the resulting GIS-13 and dropped another item to achieve a better model fit (SRMR =.058, GFI =.986, AGFI =.980 and NFI=.980). The remaining 12-item GIS (GIS-12) showed excellent reliability (Mc Donald’s omega =.898) and satisfactory temporal stability (ICC =.59, 95% CI =0.27 to 0.77) over a 4-week interval. The scale’s moderate correlation with another measure for generational identification demonstrates its convergent validity. Participants’ transitional experience caused by the Bangladesh independence war in 1971 was also moderately correlated with the GIS-12 supporting further theoretical convergence of this scale. We recommend that researchers could use this scale on different populations and age groups upon appropriate validation.

中文翻译：

---

孟加拉国老年人代际认同量表的构建和验证

缺乏针对代际认同的心理测量工具。我们对目睹 1971 年孟加拉国解放战争的孟加拉国老年人进行了两项研究，以开发新一代身份量表 (GIS)。第一项研究（N=300）准备了 31 个项目的初始库，并经过专家评委的审查，保留了 21 个项目形成临时 GIS（GIS-21）。GIS-21 的探索性因素分析排除了八个项目，并提供了一个双因素解决方案：(i) 对世代的认同和 (ii) 对世代重要性的认识。第二项研究 (N=176) 对生成的 GIS-13 进行了验证性因素分析，并放弃了另一个项目以实现更好的模型拟合（SRMR =.058、GFI =.986、AGFI =.980 和 NFI=.980） 。其余 12 项 GIS (GIS-12) 在 4 周的时间间隔内表现出出色的可靠性（麦当劳欧米茄 = 0.898）和令人满意的时间稳定性（ICC = 0.59，95% CI = 0.27 至 0.77）。该量表与另一种代际识别指标的适度相关性证明了其收敛有效性。1971 年孟加拉国独立战争造成的参与者的过渡经历也与支持该量表进一步理论趋同的 GIS-12 存在适度相关。我们建议研究人员在经过适当验证后可以在不同人群和年龄组中使用该量表。