Although the IKDC-SKF/GR change score value exceeded the reliability test retest error (SDC and LOA), only indirect inferences can be made, as the test retest data were derived from a different subsample, which included only 1 patient with meniscus pathology.
The ADAMS sample was derived from a stratified random subsample of 1,770 individuals aged 70 years or older from five cognitive strata based on participants' cognitive test scores or proxy-reported cognition from the most recent HRS interview (in 2000 or 2002).
The threshold of 3600 counts/min was derived from a calibration study conducted in a subsample of 246 ALSPAC children who were asked to perform a series of everyday activities while wearing an accelerometer and a portable metabolic unit (Cosmed K4b, Cosmed, Rome, Italy).
This result is illustrated in Figure 2c, which plots the change in score on the BDI-II in the subgroup of participants in the imagery condition who reached this "vividness threshold" against the change in the control condition for comparison (estimated marginal means are derived from a mixed model analysis using this subsample).
In particular, the "Scladina" subsample consisted of a reasonably large (20 sequences) local sample, derived from a single deposit in Belgium (Scladina cave), covering a wide time range (30 –130 KYA) [54], with all of the sequence times being reasonably accurately estimated by precise stratigraphic records (for details, see [54] and the Appendix section provided in [28]).
Note that the Scladina cave in Belgium is the most relevant subsample to test for this correlation, as it is entirely derived from a local population, thus minimizing population structure effects on linkage disequilibrium measures (which are known to be drastic [61]).
CC provides quantitative and visual 'stability' evidence derived from repeated subsampling and clustering.
