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The changing of treatments in a long-term trial

Published online by Cambridge University Press:  27 March 2009

S. C. Pearce  and
J. Taylor
S. C. Pearce
Affiliation:
East Mailing Research Station, East Mailing, Kent
J. Taylor
Affiliation:
East Mailing Research Station, East Mailing, Kent
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Summary

The changing of treatments during the course of an experiment is discussed both from the point of view of designing trials in which changes are anticipated and of modifying trials that have fulfilled their original purpose. Cases are distinguished according to whether the interactions of original and new treatments are or are not important and recommendations are made for each case.

We are indebted to Miss J. M. S. Thom for preparing the diagrams fot publication.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 38 , Issue 4 , October 1948 , pp. 402 - 410
Copyright
Copyright © Cambridge University Press 1948

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References

REFERENCES

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