A note on the recovery of inter-block information in balanced incomplete block designs

Abstract

Consider the recovery of interblock information in balanced incomplete block designs. It is shown that the recovery of interblock information through the estimated generalized least squares (EGLS) estimator may improve the estimation, provided (b-t) > 4 where b =number of blocks and t =number of treatments. An expression for the variance covariance matrix for the EGLS estimator is provided and its behaviour is studied.

Keywords:

• EGLS estimator
• BIB designs