Salthouse T A
School of Psychology, Georgia Institute of Technology, USA.
J Gerontol B Psychol Sci Soc Sci. 1996 Jan;51(1):P30-42. doi: 10.1093/geronb/51b.1.p30.
The proposal that age-related differences in some measures of speed of performance may not be independent of the age-related differences in other measures of speed of performance has been associated with considerable controversy. Because converging evidence can often resolve this type of controversy, correlation-based procedures are proposed to distinguish general (or common) and specific (or unique) age-related influences on measures of speeded performance. Results from three earlier studies and from a new study suggest that a large proportion of the age-related variance in a wide range of speed measures is shared and is not distinct. Furthermore, the common or general speed factor appears to play an important role in the mediation of age-related differences in memory.
关于某些绩效速度测量指标中与年龄相关的差异可能并非独立于其他绩效速度测量指标中与年龄相关的差异这一观点，引发了相当大的争议。由于汇聚性证据往往能够解决这类争议，因此有人提出基于相关性的程序，以区分与年龄相关的对快速绩效测量指标的一般（或共同）影响和特定（或独特）影响。三项早期研究以及一项新研究的结果表明，在广泛的速度测量指标中，很大一部分与年龄相关的方差是共享的，并非截然不同。此外，共同或一般速度因素似乎在调节与年龄相关的记忆差异方面发挥着重要作用。
