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. 2023 Jun 25;21:61. doi: 10.1186/s12955-023-02152-8

Table 3.

Simulations design

SE on general factor SE on group factor Change in Inline graphic from one item to the next for both the general and the group factors
Simulation HRQOL Physical function Role limitations-physical Role limitations-emotional Bodily pain Emotional well-being Energy/vitality Health perceptions Cognitive function Health distress Sexual function
Full* - - - - - - - - - - - -
1 0.32 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 -
2 0.32 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 < 0.01
3 0.32 - - - - - - - - - - -
4 0.32 - - - - - - - - - - < 0.01
5 0.40 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 -
6 0.40 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 < 0.01
7 0.40 - - - - - - - - - - -
8 0.40 - - - - - - - - - - < 0.01

HRQOL, health-related quality of life; SE, standard error of measurement; Inline graphic, latent trait estimate

* Simulation conducted with no termination rules