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ERIC Number: ED258791
Record Type: RIE
Publication Date: 1985-Apr
Reference Count: 0
Chronometric Analysis of Complex Addition: Verification of a General Model.
Geary, David C.; And Others
Simple and complex addition problems were presented for true/false verification to 30 undergraduate students to test a general model for cognitive addition. Problems were presented on a microcomputer, with reaction time (RT) and response accuracy recorded. Models for addition were fit to average RT data using multiple regression techniques. These models revealed that subjects were processing complex multicolumn problems columnwise beginning with the units column. Column sums seemed to be obtained through an incrementing process, and subjects exited problems as soon as a column error was encountered. Complex single column multidigit problems were done by "chunking" two digits (summing to 10) and then incrementing the remaining addends beginning with the smallest value digit. These results support the proposed addition model. Implications for future research are discussed. (Author/JN)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A
Note: Paper presented at the Annual Meeting of the Western Psychological Association (San Jose, CA, April, 1985).