AGE CHANGES IN INTELLECTUAL ABILITIES IN THE ELDERLY

这项研究计划的目的是研究年龄和智力 在老年人中发挥作用。本文提出了四项研究。第一 涉及收集关于455名老年人样本的第三波数据 使用广泛的电池进行测试(包含10个 因素)。纵向数据将用于 评估有关因素结构和水平变化的假设 指的是跨越14年的三次测量。 第二项和第三项研究利用了在两个月前收集的数据 测量的场合。研究2评估终端的作用 拒绝。455名参与者(在第一次和第二次测试中)将 根据收集的信息被归类为在世或已故 场合3.这些人的现有纵向数据(已经 聚集的)将被用来评估是否超过七个 对于那些去世的人和那些活着的人来说 三个变量：词汇、算术和符号知觉速度。 研究3涉及主观健康在智力变化中的作用。 在通径分析中将使用主观健康的两个等级 评估预测(结合其他变量，如性别和 教育)相同的三个人的绩效随时间的变化 研究2中描述的变量。 第四项研究使用了收集的横截面和纵向数据 在之前的资助期间，作为智力和记忆的一部分 项目。之前使用路径分析技术的工作(适用于十字交叉 截面数据)已经显示出困难之间的显著关系 (抑郁症的一个方面)和图形感知速度。这个项目 将在两个横断面中分析其他年龄敏感的能力因素 和纵向数据集来评估这一发现的一般性。

The purpose of this research program is to study age and intellectual functioning in older adults. Four studies are proposed. The first involves gathering a third wave of data on a sample of 455 elderly who tested with an extensive battery (containing multiple indicators for ten factors) in 1976/7 and in 1983/4. The longitudinal data will be used to evaluate hypotheses concerning changes in structure and level of factor means across three occasions of measurement spanning fourteen years. The second and third studies take advantage of data gathered at two occasions of measurement. Study 2 evaluates the role of terminal decline. The 455 participants (tested at occasions 1 and 2) will be classified as living or deceased, based on information gathered at occasion 3. Existing longitudinal data for these individuals (already gathered) will be used to evaluate whether greater decline over seven years is found for those who are deceased versus those who survive for three variables: vocabulary, arithmetic and symbolic perceptual speed. Study 3 concerns the role of subjective health in intellectual change. Two ratings of subjective health will be employed in path analyses to evaluate prediction (in conjunction with other variables such as sex and education) of change in performance over time for the same three variables described in Study 2. The fourth study employs cross-sectional and longitudinal data gathered during previous funding periods as a part of the Intelligence and memory project. Previous work with path analysis techniques (applied to cross sectional data) has shown a significant relationship between Dyspgoria (one aspect of Depression) and Figural Perceptual Speed. This project will analyze other age sensitive ability factors in both cross-sectional and longitudinal data sets to evaluate the generality of this finding.