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Experimental Design

Bayo Lawal ()
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Bayo Lawal: Kwara State University, Department of Statistics and Mathematical Sciences

Chapter 9 in Applied Statistical Methods in Agriculture, Health and Life Sciences, 2014, pp 337-354 from Springer

Abstract: Abstract Before we formally describe the principles of experimental design, two terms need to be defined. The two terms are Observational Study and Experiment. Observational study investigates what is present in the population. Any condition not represented in the population will not be observed in an observational study (we shall discuss this at the end of this chapter). In many investigations, however, it is desired to investigate conditions which do not appear in a population. In an experimental investigation or experiment, the experimenter may, and often does introduce conditions which do not exist in any naturally occurring population, i.e., it is a planned interference in the naturally occurring order of events by the investigator. The investigator controls the conditions in the experiment, whereas the conditions in a survey are those that prevail in the population.

Keywords: Local Control; Experimental Unit; Estimate Odds Ratio; Orthogonal Design; Balance Design (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1007/978-3-319-05555-8_9

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