Fendrich David W, Arengo Raina
Division of Social Sciences, Widener University, 1 University Place, Chester, PA 19013, USA.
Psychol Res. 2004 Aug;68(4):216-23. doi: 10.1007/s00426-003-0142-9. Epub 2003 Aug 21.
This study examined the effects of string length and repetitions on number processing with a data entry task. Participants read and entered strings of between three and eight digits and then typed them on the keypad of a computer. Chunking effects were found for all string lengths, with chunk sizes of as small as two digits. Chunk boundary placement varied depending on the length of a digit string, and chunking was avoided at positions between digit repetitions, even when those positions were otherwise common chunk boundaries. Digit repetitions significantly reduced the study time required to process a string prior to its entry. These results are interpreted as showing that flexible chunking strategies and the presence of repetitions are used to facilitate number processing.
本研究通过一项数据录入任务，考察了字符串长度和重复次数对数字处理的影响。参与者读取并输入三到八位数字的字符串，然后在计算机键盘上键入这些数字。所有字符串长度均发现了组块效应，组块大小小至两位数。组块边界的位置因数字字符串的长度而异，并且在数字重复之间的位置避免组块，即使这些位置在其他情况下是常见的组块边界。数字重复显著减少了在输入字符串之前处理该字符串所需的研究时间。这些结果被解释为表明灵活的组块策略和重复的存在有助于数字处理。
