Is there a way to calculate a correlation coefficient for binary data?

I've gathered some binary data and my observations look like this: trt1 trt2 trt3 trt4 p1 1 1 0 1 p2 1 1 1 1 p3 1 1 1 1 p4 1 1 1 1 p5 1 1 1 1 p6 1 1 1 1 p7...

12 December 2017 4,408 4 View