Construction of partially efficiency balanced block designs with and without repeated blocks

Two new methods have been proposed for the construction of Partially Efficiency Balanced Designs with and without repeated blocks. Method 1 discusses the construction of Partially Efficiency Balanced Design with repeated blocks by reinforcing some treatments in two BIBDs of the series , , and , , . Method 2 discusses the construction of Partially Efficiency Balanced Design without repeated blocks by reinforcing some treatments in BIBDs of the series , , where s is any positive integer . The methods are illustrated with suitable example.