Am I calculation method wrong to use ROC curve to exam my binary model?

01 January 1970 1 9K Report

I used SPSS (Ver 24) to exam my binary model.

My binary model was created with performance as follow:

(1)The results of Omnibus Test (Chi-sq.=31.705, p0.05) revealed the model was statistically significant.

(2) The Cox & Snell R square and NagelKerke R square were 0.109 and 0.146 respectively.

(3) The overall percentage of predicted accuracy was 64%, indicating a weak correlation between observed and predicted treatment options. (r=0.28, p

Mehmet Sinan Iyisoy

If AUC=1 then this means perfect performance. You are doing wrong. You should take your predicted probability and your dependent variable (not predicted group) when drawing a ROC curve. Otherwise you get AUC=1 as you already got.

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