Analyse the data of two responses while having two different scales

I am working on data analysis these days and stuck on analysis when I have to compare the two kinds of responses. First, I have data on the self assessment, I have asked students to rate them on a scale of 1- 5 (SD-SA) on 25 behaviors, what they think about themselves.

Than though a timed exercise, I have asked assessors to access them on same behaviors on the number of occurrence and also if the student shows anything against the behavior then a negative score is also given. The scoring is done is such a way that a student can get a maximum of 4 points if they show the behaviors many times and a minimum of negative 4 if they show against.

Now, for the purpose of comparison I want to analyse both the scores. Self assessment Vs Assessor scoring, so I want to know how can I do it? I want to measure the over/under estimation of self assessment or the assessor scoring.

Should I make the assessor score into a scale too? Where -4 to -1 is disagree, -1 to 1 is neutral and 1 to 4 is Agree? I can't seem to make it a scale of 1-5 to have a uniform score.

I have asked the same question on Cross Validated. UPDATE: Question has been eliminated.

• Do you still have this question? – luchonacho Apr 12 '17 at 8:33