Structure of the Concordance Matrix Related to Extended Group Divisible Designs Bae Jong-Sung; Kim Sea-Young;
The paper by Paik (1985) introduced a structural property of the designs which was related to the concordance matrix of the design. This special property was termed Property-C. The designs which have Property-C need not calculation of the generalize inverse of C matrix for solution of reduced normal equation. Paik also mentioned that some block designs belong to Property-C. This paper show the Extended Group Divisible designs defined by Hinkelmann (1964) are included in Property-C.
Extended Group Divisible Design;Property-A;Property-C;
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