Deciding the Existence of a Time-Sharing Ability: A Combined Methodological and Theoretical Approach
本文批判性回顾了研究双任务绩效中时间共享能力的实验与统计方法，指出以往数据和分析程序不足以评估该能力，并通过重新分析现有数据，未否定时间共享能力的存在。
Experimental and statistical methods for examining individual differences in dual-task performance and time-sharing ability are reviewed and criticized. Previous data and analysis procedures are generally inadequate to evaluate a time-sharing ability. Errors resulting from unsophisticated use of correlational and factor analytic procedures are described. Four previous studies that concern time-sharing are considered in detail. The nature of task selection, scoring methods, and control of practice and reliability issues are discussed. Based on a reanalysis of available data, a time-sharing ability is not rejected. Simulation, incorporation of theory in planning models, and crucial tests of the hypotheses are proposed as methods for assessing the time-sharing ability.