Department of Psychology, University of Notre Dame, Indiana.
Gerontologist. 2021 Apr 3;61(3):430-438. doi: 10.1093/geront/gnaa115.
The development of generativity, or investment in the next generation, has been theorized about for decades. Extant empirical findings regarding generativity's trajectory, however, are mixed. Thus, the current study modeled the development of generative concern, or the extent to which individuals care for the next generation, across adulthood.
The current study followed an accelerated longitudinal design, modeling generative concern's trajectory across the overlapping ages of 861 age-heterogeneous participants from the 10-year Notre Dame Study of Health & Well-being. Three models were fit to examine whether generative concern followed a linear, quadratic, or cubic trajectory across ages 40-84. The Final Model was tested for birth cohort effects to support the interpretation of developmental change.
Generative concern followed an age-graded cubic trend across ages 40-84, and no birth cohort effects were apparent in this trajectory. Generative concern was highest at age 40. Although generative concern declined thereafter, it remained relatively stable across ages 50-70. Finally, generative concern declined after age 70.
Generative concern, indeed, develops over time. The step-like declines across ages 40-84 are informative for both basic and applied researchers in that knowledge of this developmental trend bolsters decade-old theory and informs the optimal timing for intervention work.
几十年来,人们一直在研究生育力的发展,即对下一代的投入。然而,关于生育力轨迹的现有实证发现却存在分歧。因此,本研究采用加速纵向设计,对 861 名年龄各异的 10 年圣母大学健康与幸福感研究参与者在成年期的生育关怀轨迹进行建模。该研究共拟合了三个模型,以检验生育关怀是否沿着线性、二次或三次轨迹在 40-84 岁之间发展。最后还对出生队列效应进行了检验,以支持对发展变化的解释。
本研究采用加速纵向设计,对 861 名年龄各异的 10 年圣母大学健康与幸福感研究参与者在成年期的生育关怀轨迹进行建模。该研究共拟合了三个模型,以检验生育关怀是否沿着线性、二次或三次轨迹在 40-84 岁之间发展。最后还对出生队列效应进行了检验,以支持对发展变化的解释。
生育关怀在 40-84 岁之间呈现出年龄分级的三次趋势,在这个轨迹中没有明显的出生队列效应。生育关怀在 40 岁时最高。虽然此后生育关怀有所下降,但在 50-70 岁之间仍相对稳定。最后,生育关怀在 70 岁后下降。
生育关怀确实是随着时间的推移而发展的。40-84 岁之间的阶梯式下降对基础和应用研究人员都有意义,因为了解这种发展趋势可以增强十年前的理论,并为干预工作提供最佳时机。