Abstract
A method is developed for identifying confounded effects in factorial designs, whether symmetrical or asymmetrical, arranged in the any of the simple block structures described by Nelder (1965). The dual process gives a method of constructing factorial designs with specified patterns of confounding. Both methods are extensions of those commonly used for symmetrical factorial designs with prime number of levels and a single block category.
Original language | English |
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Pages (from-to) | 597-603 |
Number of pages | 7 |
Journal | Biometrika |
Volume | 64 |
Issue number | 3 |
Publication status | Published - 1977 |
Keywords
- alias
- asymmetrical factorial design
- block structure
- confounding
- defining contrast
- Design key
- fractional replicate
- symmetrical factorial design
- treatment effect