The phrase "a fixed item" is correct and usable in written English.
It can be used to refer to an object or element that is stable, unchanging, or permanently established in a particular context.
Example: "In our inventory system, each product is categorized as either a fixed item or a variable item based on its pricing structure."
Alternatives: "a permanent item" or "a stable item".
The mathematics assessment was presented as a paper-and-pencil test with a fixed item order, consisting of 30 multiple-choice items, scored as correct or incorrect.
Also, given a fixed item bank size, due to the possibility of building a variety of different forms that overlap at the module level, MSCAT allowed the test developer to create a greater diversity of forms.
In addition to this training, the HHC workers could discuss which preventive activities they provided and address the barriers they faced at work meetings, because the topic of prevention had become a fixed item on the agenda.
Most existing models assume that items have a fixed item width, as they can be displayed in one display orientation only.
Additional limitations of the present study include the small number of replications per experimental condition, the use of a fixed-length CAT and fixed item bank size.
A final set of calibrations was performed, using the fixed item parameter method, so that the test forms were again linked.
The fixed item parameter method was used to link the test forms.
On the basis of this fixed item parameter linking (von Davier et al. 2008), the two measurement instances can then be projected as two dimensions onto a common scale (main dimension).
As the test was primarily developed for prospective teachers at German universities, the Austrian item parameters are estimated again with fixed item parameters according to the values of Germany for those item parameters with no significant logit difference.
Nonetheless, while there were no significant differences between the two fixed item forms, we determined how many additional three-option items of comparable quality might be needed to obtain an increase in Cronbach's Alpha.
