School of Psychology and Social Science, Edith Cowan University, Joondalup, Australia.
Int Psychogeriatr. 2012 Mar;24(3):397-405. doi: 10.1017/S1041610211001918. Epub 2011 Oct 21.
We aimed to examine the role of age and premorbid intelligence (IQ) in suppressing the relationship between subjective memory complaints (SMCs) and raw score memory performance.
We used a community sample of older adults aged 66-90 years (N = 121) to test whether the inclusion of age and a premorbid IQ measure in multiple regression analyses increased semipartial correlations of raw score memory performance in predicting SMCs. Rank contrast correlations were also carried out to observe how age and premorbid IQ are related to complaint-performance congruency. Measures utilized in the study included the Memory Functioning Questionnaire (for SMCs), Visual Reproduction and Logical Memory Subtests (memory performance), and the National Adult Reading Test (premorbid IQ).
Inclusion of age and premorbid IQ in the multiple regression analyses increased semipartial correlations for all raw score measures of memory. Both age and premorbid IQ were significantly related to complaint-performance congruency, whereby older participants and those with lower premorbid IQ scores rated their memory abilities more leniently than younger and higher premorbid IQ participants.
The results suggest differences in age and premorbid IQ play a small role in suppressing the relationship between SMCs and memory performance when utilizing raw score measures of memory.
我们旨在探讨年龄和术前智力（智商）在抑制主观记忆抱怨（SMC）与原始分数记忆表现之间关系中的作用。
我们使用了一个年龄在 66-90 岁之间的社区老年人样本（N=121），以测试在多元回归分析中纳入年龄和术前智商测量值是否会增加原始分数记忆表现对 SMC 的预测的半偏相关。还进行了等级对比相关分析，以观察年龄和术前智商与抱怨-表现一致性的关系。研究中使用的测量包括记忆功能问卷（用于 SMC）、视觉再现和逻辑记忆子测验（记忆表现）以及全国成人阅读测验（术前智商）。
在多元回归分析中纳入年龄和术前智商增加了所有原始分数记忆测量的半偏相关。年龄和术前智商都与抱怨-表现一致性显著相关，年龄较大的参与者和术前智商得分较低的参与者对自己的记忆能力评价比年龄较小和术前智商得分较高的参与者更为宽松。
研究结果表明，在使用原始分数记忆测量时，年龄和术前智商的差异在抑制 SMC 与记忆表现之间的关系中仅起很小的作用。
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