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Perancangan Eksperimen [5] March 7, 2009

Posted by desrinda in Perancangan Eksperimen.


A nuisance factor is a factor that probably has some effect on the response but not considered by the experimenter. However, the variability it transmits to the response needs to be minimized.

Types of nuisance factor:
1. Unknown and uncontrollable => RANDOMIZATION
2. Known but uncontrollable => ANALYSIS OF COVARIANCE (ANCOVA)
3. Known and controllable => BLOCKING TECHNIQUE

Variability arising from nuisance factor can impact the results of an experiment. Therefore, experimenter should apply randomized complete block design (RCBD, Chapter 4 of Design and Analysis of Experiments, Douglas C. Montgomery, John Wiley & Sons, 2005).



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