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Table 2 Factor analysis with varimax orthogonal rotation for 14 items from peer relations scale (N = 509)

From: Peer relations scale for adolescents treated for substance use disorder: a factor analytic presentation

How many of your friends1. . . Item No. Mean SD Min.-Max. Factor 12 Factor 2 Factor 3 Communality
are new friends since treatment? 4 1.97 1.00 1-5    0.838 0.733
are same friends as before treatment? 3 2.89 1.29 1-5    0.834 0.744
attend school regularly? 5 2.91 1.60 1-5 0.211    0.102
hang out with "gangs"? 10 3.36 1.55 1-5 0.331    0.116
get into arguments/fights? 6 3.67 1.25 1-5 0.239    0.096
spend time with their families? 7 4.05 1.12 1-5 0.340    0.165
have your parents met your friends? 1 4.38 0.85 1-5 0.369    0.141
go to jail or prison? 11 3.47 1.15 1-5 0.420    0.210
do your parents like and approve of? 2 3.57 1.12 1-5 0.521    0.311
use drugs? 9 4.02 0.83 1-5 0.510 0.508   0.556
drink too much alcohol? 8 3.79 0.99 1-5 0.608    0.440
cause trouble for you? 12 4.36 1.09 1-5 0.474    0.246
encourage you to stay in treatment? 13 4.34 1.41 1-5   0.728   0.548
help you quit drugs? 14 3.69 1.83 1-5   0.739   0.577
Cronbach Alpha      0.71 0.80 0.87  
Eigenvalues      1.87 1.61 1.51  
Percent of common variance      37.47 32.26 30.26  
Percent of total variance      13.36 11.50 10.79  
Number of measures      10 3 2  
  1. 11 = never, 2 = rarely, 3 = sometimes, 4 = often, 5 = almost always.
  2. 2 factor loadings < 0.20 are suppressed.