In my research, I aim to compare websites and need to identify if the websites differ significantly from each other. I have divided the website into two categories. I have sampled 45 websites in the first category and 30 websites in the the other category. I need to identify if the first set of websites differ significantly from the second set. My data is largely nominal, as I just count the presence or absence of certain elements on the webpages.
So, during my data collection stage, I counted the Presence or Absence of certain elements on these website, and calculated the the percentage of occurrence of these elements, for the two sets of websites.
When I had the percentage of each elements for both the sets, I applied the Two Sample Test of Proportions, and tested my hypotheses (Is one set different from the other in terms of element A, B, C...etc). I had 60 elements, and I applied the test separately 60 times for each element.
My results do make sense, but I am just not sure if the test is a valid measure for my research. Can someone please help.