A post hoc correction procedure for systematic errors in time-sampling duration estimates |
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| Authors: | Hoi K Suen Donald Ary |
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| Institution: | (1) Northern Illinois University, 60115 DeKalb, Illinois |
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| Abstract: | Numerous previous studies have shown that partial-interval sampling in direct observation systematically overestimates duration and underestimates frequency. Whole-interval sampling systematically underestimates both duration and frequency. This paper presents a post hoc method through which the systematic errors in duration estimates in partial-interval sampling and whole-interval sampling can be minimized. |
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| Keywords: | systematic error behavioral observation observer accuracy time sampling duration estimate |
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