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Table 1 Factor loadings of the C-PMPUQ-SV based on EFA in sample 1 (n = 1043)

From: Factor structure and measurement invariance of the problematic mobile phone use questionnaire-short version across gender in Chinese adolescents and young adults

Item1st round2nd round3rd round
DUPDPUDUPDPUDUPDPU
KMO0.8300.8160.790
χ23952.538 P < 0.0013053.816 P < 0.0012397.266 P < 0.001
80.766  0.772  0.785  
110.749  0.744  0.737  
140.742  0.730  0.744  
20.731  0.760  0.780  
90.533  ×  ×  
13 0.733  0.789  0.836 
10 0.714  0.755  0.775 
7 0.649  0.587(0.541) × 
1 0.609  0.536(0.576) × 
4 0.586  0.629  0.684 
5  0.752  × × 
12  0.684  0.571  0.613
3  0.646  0.675  0.714
15  0.544  0.653  0.668
6  0.536  0.632  0.637
  1. Note: C-PMPUQ-SV Chinese version of the Problematic Mobile Phone Use Questionnaire-Short Version, EFA exploratory factor analysis, DU dangerous use, PD perceived dependence, PU prohibited use, KMO Kaiser-Meyer-Olkin measure of sampling adequacy, χ = Bartlett’s test of sphericity approximate chi-square, values in parentheses = the secondary factor loading, × = items removed in the previous rotation