highly significantp < 0.001
Bartlett’s test was highly significant in all cases (All: χ 2 = 3806, p < 0.001; North: χ 2 = 1370, p < 0.001; Mid: χ 2 = 1874, p < 0.001; South: χ 2 = 1653, p < 0.001), confirming that correlations were sufficient for factor extraction.