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