Abstract
Previous studies have shown that instantaneous time sampling results are more highly correlated with true duration than are one-zero sampling results. One-zero results, however, reflected a composite of both duration and frequency better than did instantaneous results. It is shown in this analysis that these outcomes are the logical result of the definitions of the two sampling modes. When interval lengths meet specific requirements, correct frequency counts can be obtained with either mode and systematic duration error with one-zero sampling can be eliminated by subtracting frequency from the number of intervals scored ‘one.’
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Suen, H.K., Ary, D. Variables influencing one-zero and instantaneous time sampling outcomes. Primates 25, 89–94 (1984). https://doi.org/10.1007/BF02382298
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DOI: https://doi.org/10.1007/BF02382298