I have a sample size of 51 and for my each participant, I have 15 dichotomous variables for vocabulary knowledge (know-not know) and 15 variable for their score for each word. Something like this:
table table score
P1 0 41
P2 1 55
P3 0 37
P4 1 52
I have 15 different pairs of variables like this and I restructured the data into long format (variables to cases). So now I have 2 main variables as "words" and "scores". I will go for pearson correlation but this time "N" increases to thousands. I have 51 participants, not thousands of people. Is that a problem or normal? I think it is quite reasonable but I am not sure. Thanks.