1. A method for supporting a diagnosis of an effect of a treatment by using anthracycline anticancer drugs, comprising: measuring in a malignant tumor sample collected from a patient an expression level of a cyclin dependent kinase 1 (CDK1), an activity value of the CDK1, an expression level of a CDK2 and an activity value of the CDK2 by using a measuring apparatus; and calculating by a computer a judgment score based on the following formula (1), 
 judgment score= F ( x )× G ( y )   (1) wherein x represents a CDK1 specific activity which is able to be calculated by using a ratio of the expression level and the activity value of the CDK1, and y represents a specific activity ratio which is able to be calculated by using a ratio of the CDK1 specific activity and a CDK2 specific activity wherein the CDK2 specific activity is able to be calculated by using a ratio of the expression level and the activity value of the CDK2.