Longitudinal Study of Generations, 1971, 1985, 1988, 1991, 1994, 1997, 2000, 2005 [California]

The Longitudinal Study of Generations (LSOG), initiated in 1971, began as a survey of intergenerational relations among 300 three-generation California families with grandparents (then in their sixties), middle-aged parents (then in their early forties), and grandchildren (then aged 15 to 26). The study broadened in 1991 and now includes a fourth generation, the great-grandchildren of these same families. The LSOG, with a fully elaborated generation-sequential design, allows comparisons of sets of aging parents and children at the same stage of life but during different historical periods. These comparisons make possible the investigation of the effects of social change on inter-generational solidarity or conflict across 35 years and four generations, as well as the effects of social change on the ability of families to buffer stressful life transitions (e.g., aging, divorce and remarriage, higher female labor force participation, changes in work and the economy, and possible weakening of family norms of obligation), and the effects of social change on the transmission of values, resources, and behaviors across generations. The LSOG contains information on family structure, household composition, affectual solidarity and conflict, values, attitudes, behaviors, role importance, marital relationships, health and fitness, mental health and well-being, caregiving, leisure activities, and life events and concerns. Demographic variables include age, sex, income, employment status, marital status, socioeconomic history, education, religion, ethnicity, and military service.

《代际纵向研究》（LSOG），始于1971年，最初是对300个拥有祖父母（当时六十多岁）、中年父母（当时四十多岁）和孙辈（当时15至26岁）的加利福尼亚三口之家之间的代际关系的调查。该研究在1991年得到拓展，现在包括了这些家庭的第四代，即上述家庭的曾孙辈。LSOG采用了一套完整的代际顺序设计，使得研究者能够比较处于生命同一阶段但处于不同历史时期的老龄父母和子女群体。这些比较使得研究社会变革在35年及四代之间对代际团结或冲突的影响成为可能，以及社会变革对家庭缓冲压力性生活过渡（例如，老龄化、离婚再婚、女性劳动力参与度提高、工作与经济变化以及家庭责任规范的潜在削弱）的能力的影响，以及社会变革对价值观、资源和行为跨代传递的影响。LSOG包含了关于家庭结构、家庭构成、情感团结与冲突、价值观、态度、行为、角色重要性、婚姻关系、健康与体能、心理健康与福祉、照顾、休闲活动以及生活事件和关注的详细信息。人口统计学变量包括年龄、性别、收入、就业状况、婚姻状况、社会经济历史、教育、宗教、种族和军事服务。