Blocking in experimental design
Table Of Content General balanced designs (t-designs) Blocking in experimental design Randomized Block Design Statistical Analysis of the Latin Square Design Select appropriate blocking factors In this case, a block represents an experimental-wide restriction on randomization. In this example we wish to determine whether 4 different tips (the treatment factor) produce different (mean) hardness readings on a Rockwell hardness tester. The treatment factor is the design of the tip for the machine that determines the hardness of metal. General balanced designs (t-designs) Latin Square Designs are probably not used as much as they should be - they are very efficient designs. In other words, these designs are used to simultaneously control (or eliminate) two sources of nuisance variability. For instance, if you had a plot of land the fertility of this land might change in both directions, North -- South and East -- West due to soil or moisture gradients. As we shall see, Latin square