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Table 2 Standardized factor loadings (standard errors) for the alternative models (upper: bi-factor model; lower: three-factor model)

From: Psychometric properties of the stagnation scale in medication overuse headache patients

Items Overattachment Body-Mind obstruction Affect-Posture inhibition Stagnation
Item 1- I fear losing what I possess. 0.38* (0.06) - - 0.62* (0.04)
0.72* (0.03)
Item 2- I get obsessed with details about certain matters. 0.45* (0.05) - - 0.64* (0.04)
0.77* (0.03)
Item 3- It concerns me that I am not as accomplished as others. 0.40* (0.06) - - 0.60* (0.04)
0.71* (0.03)
Item 4- Thinking about troubling things uses up a lot of my energy. 0.44* (0.04) - - 0.70* (0.03)
0.82* (0.03)
Item 5- I get overly attached to some matters, unable to let go. 0.49* (0.04) - - 0.71* (0.04)
0.85* (0.03)
Item 6- I moan and sigh. 0.20* (0.06) - - 0.64* (0.04)
0.69* (0.04)
Item 7- I still miss the things I have already lost. 0.22* (0.06) - - 0.62* (0.04)
0.67* (0.04)
Item 8- I feel as if my stomach is clogged. - 0.36* (0.06) - 0.77 (0.03)
0.83* (0.02)
Item 9- I feel as if there is something obstructing my throat. - 0.48* (0.06) - 0.76* (0.04)
0.84* (0.03)
Item 10- I feel my heart beating disquietly. - 0.40* (0.06) - 0.71* (0.03)
0.78* (0.03)
Item 11- My head feels heavy and dizzy. - 0.08 (0.07) - 0.68* (0.04)
0.70* (0.04)
Item 12- I have an indescribable fear inside. - -0.01 (0.06) - 0.84* (0.03)
0.85* (0.03)
Item 13- My gait is constrained. - - 0.21* (0.06) 0.78* (0.04)
0.85* (0.03)
Item 14- My sitting posture is rigid. - - 0.38* (0.07) 0.67* (0.04)
0.78* (0.03)
Item 15- My facial expressions are unnatural. - - 0.62* (0.06) 0.72* (0.04)
0.87* (0.02)
Item 16- My facial expressions are flat. - - 0.42* (0.06) 0.72* (0.04)
0.84* (0.03)
  1. *p < 0.001.