Table 2. Main psychometric characteristics between the parent and child version of the JAMAR. Parent N=100/193 Child N=100/199 No missing values No missing values Missing values (1st-3rd quartiles) Response pattern PF and HRQoL positively skewed PF and HRQoL positively skewed Floor effect, median PF 56.0% 69.0% HRQoL PhH 38.0% 45.0% HRQoL PsH 47.0% 54.0% Pain VAS 28.0% 38.0% Disease activity VAS 30.0% 38.0% Well-being VAS 27.0% 34.0% Ceiling effect, median PF 3.0% 2.0% HRQoL PhH 9.0% 6.0% HRQoL PsH 4.0% 2.0% Pain VAS 1.0% 1.0% Disease activity VAS 1.0% 0.0% Well-being VAS 1.0% 1.0% Items with equivalent 93% for PF, 100% for HRQoL 93% for PF, 100% for HRQoL item-scale correlation Items with items-scale 100% for PF, 100% for HRQoL 93% for PF, 100% for HRQoL correlation 0.4 ≥ Cronbach’s alpha PF-LL 0.95 0.92 PF-HW 0.97 0.95 PF-US 0.91 0.79 HRQoL-PhH 0.92 0.91 HRQoL-PsH 0.85 0.83 Items with item-scale correlation lower than the 100% for PF, 100% for HRQoL 100% for PF, 100% for HRQoL Cronbach alpha Test-retest intraclass correlation PF total score 0.88 0.82 HRQoL- PhH 0.91 0.66 HRQoL- PsH 0.80 0.88
Table 2. Main psychometric characteristics between the parent and child version of the JAMAR. Parent N=100/193 Child N=100/199 Missing values (1st-3rd quartiles) No missing values No missing values Response pattern PF and HRQoL positively skewed PF and HRQoL positively skewed Floor effect, median PF 56.0% 69.0% HRQoL PhH 38.0% 45.0% HRQoL PsH 47.0% 54.0% Pain VAS 28.0% 38.0% Disease activity VAS 30.0% 38.0% Well-being VAS 27.0% 34.0% Ceiling effect, median PF 3.0% 2.0% HRQoL PhH 9.0% 6.0% HRQoL PsH 4.0% 2.0% Pain VAS 1.0% 1.0% Disease activity VAS 1.0% 0.0% Well-being VAS 1.0% 1.0% Items with equivalent item-scale correlation 93% for PF, 100% for HRQoL 93% for PF, 100% for HRQoL Items with items-scale correlation ≥ 0.4 100% for PF, 100% for HRQoL 93% for PF, 100% for HRQoL Cronbach’s alpha PF-LL 0.95 0.92 PF-HW 0.97 0.95 PF-US 0.91 0.79 HRQoL-PhH 0.92 0.91 HRQoL-PsH 0.85 0.83 Items with item-scale correlation lower than the Cronbach alpha 100% for PF, 100% for HRQoL 100% for PF, 100% for HRQoL Test-retest intraclass correlation PF total score 0.88 0.82 HRQoL- PhH 0.91 0.66 HRQoL- PsH 0.80 0.88
JAMAR_MEXICO_v.7_tbs.docx