let's suppose I'm using a 4 point likert scale that I personally don't want to use but have to because I do not have the time to create a new one. And let's say it has 10 items. After participants have already responded, I manipulate the first two points "strongly disagree and disagree" into one point "disagree" and then agree and strongly agree into another point "agree". After this, I find an overall percentage for each item and for each group. So let's say 72% of group 1 agreed with items and 50% of group 2 agreed with items.
Would it be OK to do a T-Test to see if there is significant difference between the two percentages? If not, what would be the appropriate test to do in this scenario?
For some reason, I'm thinking something along the lines of chi square because of percentages but not totally sure why that would be, if that's correct, or how to conduct it.
Any help would be much appreciated.
Also, what would be the easiest way to statistically analyze this data to test if one group is significantly different than the other after manipulating the data the way I did?...as compared to the most acceptable way.