28 33 A further larger scale pragmatic trial of equivalence throughout the UK, with significantly longer follow-up periods and incorporating all the patients managed by the different healthcare professionals, would be valuable but highly challenging.
There is a caveat in our experimental design, which due to the lack of a standardized scale of biological age equivalence between dwarf mice and normal mice considered animals of the same chronological age for each genotype.
Therefore it is the easiest scale for performing a test of equivalence by the graphical equivalent of the TOST procedure advocated in this paper (see Figures 3 and 4).
To further investigate the issue of scale equivalence, comparisons were made using the Chinese (HK) specific SF-12 data extracted from the SF-36 data.
The evaluation of scale equivalence demonstrated that there was no significant difference in the mean anxiety or depression subscale scores between the two versions.
Finally, we examined the distribution of observers' scoring of each scan on each infarct rating scale to determine equivalence of scale ratings.
Other judgments may be used, as a result a wide variety of equivalence scales are used in various countries, and there is no accepted equivalence scale in the FSU [ 13- 16].
Mathematically, ordinal scales incorporate the relationships of equivalence, 'greater than ' and 'less than ' [ 13].
The adequacy of the model of equivalence of scale factors is tested against the model of scalar invariance.
For that reason, testing for different levels of equivalence of scales is required before relating motivation to teach to other constructs or even to compare scale means, in order to avoid inappropriate use of data across different groups.
It is a challenge that the subscales are used in the original DHI, while we recommend that only the sum scale should be used, since this relates to the question of equivalence between the scales.
