highly significantp < 0.001
Theoretical validity The suitability of the data for factor analysis was confirmed by a Kaiser‐Meyer‐Olkin (KMO) index of 0.931 (95% BCa CI 0.910–0.934) and a highly significant Bartlett’s test of sphericity (χ2 = 11 583.9, df = 630, p < 0.001).