A serial effect in time estimation

Max Coltheart*, Guy von Sturmer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


When a series of reproductions of an interval of time is made without interpolation of a standard between judgements, some studies suggest that the reproductions grow progressively longer (Falk and Bindra, 1954; von Sturmer, 1966); other work implies that the duration of reproductions is constant (McGrath and O’Hanlon, 1967). In the present study, experiments using 10 sec and 60 sec intervals supported the former view. The increase in reproduction duration was a linear function of the trial number, n. The method for measuring subjective time proposed by McGrath and O’Hanlon is criticized.

Original languageEnglish
Pages (from-to)283-284
Number of pages2
JournalPsychonomic Science
Issue number8
Publication statusPublished - 1968
Externally publishedYes


  • serial position
  • trial number
  • serial effect
  • objective time
  • standard interval


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