1/9 Identification of "meaningful change" is a key area when working w patient-reported outcomes. Nevertheless, this seems to be another area of applied #psychometrics / #statistics where rituals may have replaced understanding & deliberate practice.
🧵 w some QLR-promotion😊😅
2/9 w QLR's special issue on "Methodologies & Considerations for Meaningful Change" (under #peerreview) we wanted to initiate a more deliberate approach, now rolled out to any paper submitted aiming to make a methodological contribution to this area👇
#Epistemology #Ontology
3/9 An area of concern are discussions around different indices, in particular for classifying intra-individual change: depending on interpretation/ use case, they are all likely not appropriate as they are based on between-indiv variation.
Progress is then not even incremental.
4/9 This issue is well-understood theoretically (e.g., journals.sagepub.com/doi/10.1111/j.…).
And for those for whom theoretical considerations are not enough, two empirical illustrations e.g.: pnas.org/content/115/27…; link.springer.com/article/10.100….
#Ergodicity
@aaronjfisher @bringmann_laura
5/9 But as a more general point:
The connection between the psychometric/ statistical procedures to obtain these indices and interpretations offered has become fairly loose -- if papers provide today any justifications or interpretations at all.
6/9 The aim of the initiative is to further deliberation, transparency & encourage researchers.
The last word has not been had -- but challenges are bigger than replacing one SD for another.
What did the 3 first methodological papers make of this?
(order of publication)👇
7/9 @RonDHays & @dpeipert discuss the use & potential advantages of Jacobson & Truax' significant change vs. group-level approaches:
rdcu.be/cuRds
Their discussion identifies the limitations of the approach and key areas of future theoretical development & research. 👇
8/9 A larger team of authors reviewed the concept of minimal important change as a threshold for a minimal within-person change over time:
link.springer.com/article/10.100…
The introduction includes a clear explanation on how to correctly interpret the results of applying this method. 👇
9/9 Trigg & Griffiths discuss options to triangulate multiple meaningful change thresholds for patient-reported outcome scores:
rdcu.be/cuRIs
Their discussion impresses the importance of differences of approaches & shortcomings of current theory and practice.👇
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