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Table. 4.

Table. 4.

Principal axis factor analysis for PUTS

Item 1 2 3
PUTS 8 0.10 0.08 0.14
PUTS 7 0.74 0.34 0.08
PUTS 1 0.45 0.36 -0.04
PUTS 9 0.44 0.11 0.14
PUTS 6 0.16 0.69 0.14
PUTS 2 0.13 0.65 0.14
PUTS 3 0.30 0.57 0.01
PUTS 4 0.19 -0.01 0.93
PUTS 5 0.08 0.49 0.72
Eigen value 1.94 1.71 1.47
Common variance (%) 21.56 19.00 16.38
Cumulative variance (%) 21.56 40.56 56.94
KMO*=0.69, Bartlett's χ2†=112.85 (p<0.001)

* Kaiser-Meyer-Oklin (KMO) measure, Bartlett’s Test of Sphericity.

PUTS: Premonitory Urge to Tics Scale

J Korean Acad Child Adolesc Psychiatry 2020;31:146-53 https://doi.org/10.5765/jkacap.200013
© 2020 J Korean Acad Child Adolesc Psychiatry