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Exact(46)
Almost all studies had poor internal validity scores.
Mean criterion referenced validity scores at the system level were acceptable (MT1 = 73.9%; M T2 = 75.3%).
However, only five of the papers included in the review provide sufficient detail to calculate validity scores.
The validity scores ranged between 60%[43]and89%[47][47], meaning that in all of the studies 60% or more of the usability problems or incidents predicted by the users were also confirmed by classical usability testing.
The BASC-2 has three internal validity scores.
Both studies with validity scores above 8 were positive.
Similar(14)
All trials scored 5 out of 5 on a validated quality scale and 16 out of 16 on a validity scoring scale.
The overall content validity score of the all items was 0.85.
Nevertheless, a mean external validity score of 96±4%4% (range 88% to 100%) indicated a high external validity of all included studies.
These elements include the background of the instrument, intended population, respondent and administrative burden, reliability and validity, scoring convention, and reported analyses.
Therefore, criterion validity scored fair.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com