Dear respectful scholars,

I had a manuscript submitted to a journal. My reviewer said I need to generate ordinal-to-interval conversion algorithms based on person estimates of the model to transform ordinal responses into interval-level scores as recently recommended for this type of analysis (Leung et al., 2014).

Then, I went to search some articles which presented these transformation tables and I got some samples to know what should I do.

For example:

Medvedev, O. N., Krägeloh, C. U., Titkova, E. A., & Siegert, R. J. (2018). Rasch analysis and ordinal-to-interval conversion tables for the Depression, Anxiety and Stress Scale. Journal of health psychology, 1359105318755261. (Table 3)--->attached

Krägeloh, C. U., Billington, D. R., Hsu, P. H. C., Feng, X. J., Medvedev, O. N., Kersten, P., ... & Siegert, R. J. (2016). Ordinal-to-interval scale conversion tables and national items for the New Zealand version of the WHOQOL-BREF. PloS one, 11(11), e0166065. (Table 4)

However, I can't find information to lead me to conduct the analyses. Does anyone could give me some instructions? Please.

Many thanks!