Reliability was of moderate to substantial strength (kappa 0.67 to 0.73; Spearman's rho 0.67 to 0.81) [ 31].
Pedometer studies showed fair pooled criterion validity for total PA (r = 0.31) and reliability was of moderate to substantial strength (kappa from 0.67 to 0.73; Spearman's rho from 0.67 to 0.81) [ 27].
The concurrent validity between the International Physical Activity Questionnaire IPAQQ) and the GPAQ showed a moderate to strong positive relationship (range 0.45 to 0.65) and reliability was of moderate to substantial strength (kappa 0.67 to 0.73; Spearman's rho 0.67 to 0.81) [ 32].
Citric acid levels were raised to 50, 60, 70 gpl as the concentrations of 40 and 80 gpl developed DP rating of 3 and substantial strength loss due to partial degradation of fabric with appearance of yellowness respectively.
Approaching the results with linear mixed models, the effect of complexity gained substantial strength, whereas the other factors received at least partial significant support.
For WHO clinical stage, unweighted analysis resulted in a Kappa statistic of 0.54 (± 0.04), while weighted analysis showed a Kappa of 0.65 (± 0.06), classified as "substantial" strength of agreement (30).
A substantial redistribution of the electronic wavefunctions of the CrO4 2− anion and the adsorbent indicates substantial strength of this interaction.
Some studies have attempted to provide a scale and would describe κ=0.70 as "substantial" strength of agreement [37],[38], but despite considerable debate among statisticians this issue has never been definitively addressed.
Due to the substantial strength of C C bond (with average bond energy over 2 eV), the relative orientations of neighboring C C bonds (i.e., bond angles) in a nanocoil would alter during compression or elongation in order to avoid significant changes of C C bond lengths.
The use of both child self-report when age warranted and parent reported for younger ages within a study with fairly concurrent result is also a substantial strength of our study.
