Inter-rater agreement for categorical data

#1
Hello,

I have some troubles with my bachelor thesis. I'm trying to calculate the inter-rater agreement between two observers.
I have used a excel file to score some deformities. This excel file looks like this and has multiple worksheets. The goal is to calculate the agreement between these files. I am using SPSS for my statistics. I could really use your help on this matter.

Thanking in advance.

1555505250381.png
ps: 18 to 28 are the test numbers. The other numbers are nominal variables (1,2,3,4,5).