This web page contains list of Lattice designs. These designs have been constructed using various methods available in the literature, compiled and made online for easy accessibility of the experimenters. The number of treatments (v), number of blocks (b), number of replications (r), block size (k) and  average efficiencies along with the layout of these designs  have been presented for v up to 150 and r not exceeding 10.

Lattice designs form an important class of incomplete block designs which provide flexibility to suit various experimental situations. As these designs are resolvable, replications can be taken over space or over time. An added advantage of these designs is that these designs may be adopted where less number of replications are feasible due to resource constraints.  Some of these are Balanced Incomplete Block (BIB) designs while others are Partially Balanced Incomplete Block (PBIB) designs.

The steps for randomization and analysis (using SPSS & SAS) have also been described.

 

Developed by: Cini Varghese, Seema Jaggi, V.K. Sharma and N.P. Singh

 www.iasri.res.in