highly significantp < 0.001
This is indicated by the results of the correlation analysis (which was carried out after converting all scores into z-scores to standardize the measures), according to which Pearson’s r coefficient was found to be 0.691, a highly significant value ( p < 0.001), and it is also confirmed, as previously mentioned in the methodological section, by PCA and EFA that showed that all items load optimally on a single factor, we labeled ‘total care burden’. 3.2.2.