A Relevant/Irrelevant testing method devised by Leonarde Keeler and used in single- and multiple-issue testing. Its popularity has declined since the introduction of the CQT formats and it is rarely used today.
A Relevant/Irrelevant testing method devised by Leonarde Keeler and used in single- and multiple-issue testing. Its popularity has declined since the introduction of the CQT formats and it is rarely used today.