Your English writing platform
Discover LudwigExact(2)
Factor loadings of all items equalled.6.6
The factor loadings of all items equalled either.3 or.7, such that the sum-score could serve as a sufficient statistic (with respect to the phenotypic part of the data).
Similar(58)
For items within a summated scale, the correlation between one item and the sum of the other items should be of roughly the same magnitude for all items (equal item-own scale correlation).
To investigate this we simulated in two samples data we simulated data according to a 1-factor model, with factor loadings for all items fixed to.5, and all means fixed to 0. In the first sample, residual variances equalled.747, while in the second sample the residual variances of the first two items equalled this value plus.5, 1, or 2, i.e., these residual variances were.5, 1 or 2 SD larger.
Items are posed in a yes/no format with the sum of 'yes' items equaling the total AQ score (0-27).
Using these two questions, we calculated consumption of each food item, and the sum of the three items equaled a participant's total dairy consumption used in the analysis.
For the word classification condition of experiment 2 all items were treated as equal and entered into a single regressor model.
An average score for all 10 items equal or above 1.85 was used as the cut-off point for mental distress, corresponding to the 1.75 cut-off of HSCL-25 [ 34].
The difficulty parameter of the 15th item equaled.02, so that subjects with a latent trait score of.02 have 50% chance to answer this item correctly, etcetera.
All items carry equal weight and all must be met for a diagnosis of NTM lung disease (3 ) as follows.
As all items had equal discrimination parameters, a sum-score would be a sufficient statistic for this test.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com