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Table 2 Intra-class coefficients (ICC), mean values across 2 administrations, and Bland-Altman analyses assessing the reliability of three MARCA variables.

From: The Multimedia activity recall for children and adolescents (MARCA): development and evaluation

Variable ICC Mean Bias SEM Upper LoA Lower LoA
PAL 0.93 2.02 +0.001 0.11 +0.30 -0.30
MVPA min 0.94 196.2 -1.1 18.9 +51.2 -53.4
locomotion min 0.88 193.1 +6.9 26.1 +79.2 -65.4
  1. Note: n = 32; ICC = intra-class coefficient; SEM = standard error of measurement (SD/√2); LoA = limit of agreement; PAL = physical activity level (a weighted mean MET.d-1 score); MVPA = minutes spent in moderate to vigorous physical activity; locomotion = minutes spent in locomotion.