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Minimum data required for deriving soil quality criteria from invertebrate ecotoxicity experiments
Author(s) -
Vega Milagrosa M.,
Urzelai Arantzazu,
Angulo Eduardo
Publication year - 1999
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620180633
Subject(s) - ecotoxicity , reliability (semiconductor) , sample size determination , sample (material) , statistics , data quality , mathematics , environmental science , chemistry , engineering , thermodynamics , power (physics) , chromatography , metric (unit) , physics , operations management , organic chemistry , toxicity
The suitability of a new method to determine the minimum number of data required to stabilize a calculation is studied. Five different calculations have been computed, changing the order of data randomly. The statistical reliability of numerical values has also been calculated depending on the successive increase in the number of data included. In our study, when few data are considered, a great variation in the estimations is observed depending on the individual data included. The calculation is stabilized for a sample size between 5 and 15 data points, and the sample can therefore be considered representative enough. Results are in agreement with those presented by other authors.