... ß2both equal zero, there is no significant linearmodel or relationship between the dependent variable, Y, and the independent variablesX1and X2. If ß1and ß2are not both equal zero, ... desired results. Performance has declined significantly, oremployee has not sustained adequate improvement, as required since the last performancereview or performance Needs improvement (1): Consistently ... reward outcomes (Colby& Wallace 1975) as well as to identify the poor performers who may require some form ofcounselling, or training, or in extreme cases, demotion, dismissal or a decrease...