Overview of the course
Sampling is a key component of data gathering. Forty years of experience has shown that many of the textbook schemes are not practical in reality, This results in incorrect assertions, biases and lack of precision. The course is supported by numerous first-hand examples ranging across agriculture, environmental sampling, monitoring and quarantine sampling.
The course is not meant to take the place of a text on the statistical theory of sampling. This can be found in classical texts such as that of Cochran WG (1977). It is more a bridge between the theory and field reality.
The topics covered include:
|Defining the problem|
|Precision and accuracy|
|Common sampling schemes|
|Model based sampling|
|How many samples|
|Monitoring versus sampling|
|Estimating confidence intervals|
|Questions without notice|
Dr Ray Correll is trained ecologist and statistician with extensive experience in sampling. His experience covers many areas of biological and environmental sampling especially as a component of risk assessments. He has advised on many projects including assessing safety of electrical distribution grids, phytotoxins in farm produce and quarantine issues.
Ray places emphasis on practical issues of sampling and believes that a statistician always learns from field visits.
Dr Ray Correll
PO Box 366 Highgate South Australia 5063
- Buckland ST, Anderson DR, Burnham ΚΡ and Laake JL (1993) Distance sampling: Estimating abundance of biological populations London: Chapman and Hall
- Cochran WG (1963) Sampling techniques 2nd Edition Wiley International, NY
- Cochran WG (1977) Sampling techniques 3rd Edition Wiley International, NY
- Correll, R.L. (2001). The use of composite sampling in contaminated sites - a case study. Environmental and Ecological Statistics 8 (3) 185-200.
- de Gruijter J, Brus D, Bierkens M and Knotters M (2006) Sampling for natural resource monitoring Springer, Berlin
- Codex General guidelines on sampling. CODEX CAC/GL 50-2004.
- Codex General standard for contaminants and toxins in food and feed. CODEX STAN 193-1995
- Lohr S. (2010) Sampling: Design and analysis. 2nd Edition Brooks/Cole, Boston.
- Maher C and Burke T (1991) Informed decision making Longman-Cheshire, Melbourne
- Moser CA and Kalton G (1973) Survey methods in social investigation Heinemann Education Books, London
- Recommended methods of sampling for the determination of pesticide residues for compliance with mrls. CAC/GL 33-1999