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Table 1 Items corresponding to each factor after the exploratory analysis

From: Validation and psychometric analysis of the Internet Addiction Test in Spanish among college students

Item Mean SD Skewness Kurtosis Corrected item-total correlation Alpha without item Factor loading
Factor 1a Factor 2b
20 0.29 0.724 3.161 14.524 0.608 0.897 0.863 −0.008
10 0.56 1.066 2.332 8.511 0.601 0.896 0.774 0.035
13 0.57 0.912 1.942 7.245 0.598 0.896 0.762 −0.007
11 0.69 0.967 1.682 6.212 0.627 0.896 0.734 0.071
15 0.50 0.845 1.892 6.487 0.664 0.895 0.723 0.132
12 0.80 1.126 1.555 5.063 0.531 0.898 0.688 −0.001
19 0.31 0.717 2.774 11.363 0.396 0.901 0.685 −0.066
3 0.21 0.667 4.275 24.174 0.310 0.902 0.676 −0.127
9 0.63 1.021 1.963 6.953 0.562 0.897 0.541 0.213
14 1.12 1.290 1.161 3.750 0.616 0.895 0.423 0.346
4 1.00 1.112 1.183 4.279 0.340 0.903 0.347 0.093
8 0.86 1.142 1.395 4.375 0.611 0.895 −0.021 0.844
6 0.99 1.137 1.153 3.899 0.660 0.894 0.003 0.841
17 0.96 1.216 1.203 3.677 0.597 0.896 0.124 0.689
1 2.34 1.412 0.172 2.120 0.474 0.900 −0.035 0.629
2 1.43 1.242 0.780 3.102 0.614 0.895 0.139 0.622
16 1.57 1.351 0.547 2.460 0.617 0.895 0.261 0.533
18 0.45 0.903 2.732 11.451 0.636 0.896 0.404 0.469
5 0.92 1.108 1.203 3.928 0.559 0.897 0.331 0.379
Standarized alpha 0.86 0.86
Eigenvalue 9.25 1.57
Total explained variance 46.96 % 7.86 %
  1. The higher of the two-factor loadings are printed in bold. All of these were significant at 5 % level
  2. aFactor 1 = emotional investment
  3. bFactor 2 = time management and performance