Measures of Task Demand and Error Analysis in the Corsi Block-Tapping Test

Esther S. Ginsberg, Nicole Rinehart, Joanne Fielding

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)


Task demand in the Corsi block-tapping test is assumed to increase with span (number of blocks in a sequence). However, past research showed task demand is also related to sequence configuration parameters (e.g., length, crossings). This study analyzed task demand of Corsi-type sequences by estimating the association between path configuration and error commission and by examining how error paths offloaded information contained in original sequences. Thirty-eight males (aged 9-36) reproduced lowdemand paths (low in length and jaggedness with unencumbered spaces between consecutive blocks) and high-demand paths designed according to the opposite criteria. The error odds ratio was 13 times higher for high-demand paths. Values of measures of task demand decreased in most error paths; but span was usually conserved. This study provides quantitative evidence of simplification in error paths and proposes parameters of task demand to be considered in path design and standardization.

Original languageEnglish
Pages (from-to)404-413
Number of pages10
JournalPsychology & Neuroscience
Issue number4
Publication statusPublished - 1 Dec 2017


  • Corsi block-tapping test
  • crossings
  • encumbrance
  • error analysis
  • task demand

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