4.1 ONE FACTOR RANDOMISED BLOCK YOUDEN SQUARE VARIANT Y = C|B|A Analysis of terms: A + B + C Layout: B1 B2 B3 B4 ---------------- C1 | A1 A2 A3 A4 C2 | A2 A4 A1 A3 C3 | A3 A1 A4 A2 Data: A B C Y 1 1 1 15 2 2 1 7 3 3 1 14 4 4 1 8 2 1 2 17 3 2 2 6 4 3 2 8 1 4 2 7 3 1 3 22 4 2 3 14 1 3 3 11 2 4 3 15 Model 4.1(Youden square variant) A and B are fixed factors, C is a random blocking factor: Model_2 Source DF Seq SS Adj SS Adj MS F P 1 A 3 30.00 21.00 7.00 1.00 0.500 2 B 3 141.00 141.00 47.00 6.71 0.076 3 C 2 78.00 78.00 39.00 5.57 0.098 4 Error 3 21.00 21.00 7.00 Total 11 270.00 COMMENT: Uses an unrestricted model, and adjusted SS for tests. A is a fixed factor, B and C are random blocking factors: Model_2 Source DF Seq SS Adj SS Adj MS F P 1 A 3 30.00 21.00 7.00 1.00 0.500 2 B 3 141.00 141.00 47.00 6.71 0.076 3 C 2 78.00 78.00 39.00 5.57 0.098 4 Error 3 21.00 21.00 7.00 Total 11 270.00 COMMENT: Uses an unrestricted model, and adjusted SS for tests. __________________________________________________________________ Doncaster, C. P. & Davey, A. J. H. (2007) Analysis of Variance and Covariance: How to Choose and Construct Models for the Life Sciences. Cambridge: Cambridge University Press. http://www.southampton.ac.uk/~cpd/anovas/datasets/ http://www.soton.ac.uk/~cpd/anovas/datasets/Latin squares.htm